HomeMy WebLinkAboutAppendix K2 - Traffic Study Acacia
North Fontana Industrial
Complex (Acacia) (MCN No.
21-099, DRP No. 21-039, TPM
NO. 21-022, GPA No. 21-005
& ZCA No. 21-007)
TRAFFIC STUDY
CITY OF FONTANA
PREPARED BY:
Aric Evatt, PTP
aevatt@urbanxroads.com
Charlene So, PE
cso@urbanxroads.com
Jared Brawner
jbrawner@urbanxroads.com
APRIL 28, 2022
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TABLE OF CONTENTS
TABLE OF CONTENTS ............................................................................................................................. I
APPENDICES ........................................................................................................................................ III
LIST OF EXHIBITS .................................................................................................................................. V
LIST OF TABLES .................................................................................................................................. VII
LIST OF ABBREVIATED TERMS ............................................................................................................. IX
1 INTRODUCTION .................................................................................................................... 1
1.1 Summary of Findings ..................................................................................................................... 1
1.2 Project Overview ........................................................................................................................... 3
1.3 Analysis Scenarios ......................................................................................................................... 5
1.4 Study Area ..................................................................................................................................... 6
1.5 Deficiencies ................................................................................................................................... 8
1.6 Recommendations ...................................................................................................................... 10
1.7 Vehicle Miles Traveled (VMT) Analysis ....................................................................................... 14
2 METHODOLOGIES ............................................................................................................... 15
2.1 Level of Service ........................................................................................................................... 15
2.2 Intersection Capacity Analysis .................................................................................................... 15
2.3 Traffic Signal Warrant Analysis Methodology ............................................................................. 17
2.4 Roadway Segment Capacity Analysis .......................................................................................... 18
2.5 Freeway Off-Ramp Queuing Analysis .......................................................................................... 19
2.6 Minimum Level of Service (LOS) ................................................................................................. 19
2.7 Deficiency Criteria ....................................................................................................................... 19
2.8 Project Fair Share Calculation Methodology .............................................................................. 20
3 AREA CONDITIONS .............................................................................................................. 21
3.1 Existing Circulation Network ....................................................................................................... 21
3.2 General Plan Circulation Elements .............................................................................................. 21
3.3 Bicycle & Pedestrian Facilities ..................................................................................................... 21
3.4 Transit Service ............................................................................................................................. 26
3.4 Truck Routes ............................................................................................................................... 26
3.5 Existing Traffic Counts ................................................................................................................. 26
3.6 Existing (2021) Intersection Operations Analysis ....................................................................... 30
3.7 Existing (2021) Traffic Signal Warrants Analysis ......................................................................... 31
3.8 Existing (2021) Roadway Segment Capacity Analysis ................................................................. 31
3.9 Existing (2021) Off-Ramp Queuing Analysis ................................................................................ 31
3.10 Recommended Improvements ................................................................................................... 32
4 PROJECTED FUTURE TRAFFIC ............................................................................................... 35
4.1 Project Trip Generation ............................................................................................................... 35
4.2 Project Trip Distribution .............................................................................................................. 36
4.3 Modal Split .................................................................................................................................. 41
4.4 Project Trip Assignment .............................................................................................................. 41
4.5 Background Traffic ...................................................................................................................... 41
4.6 Cumulative Development Traffic ................................................................................................ 41
4.7 Near-Term Traffic Conditions...................................................................................................... 45
5 EAP (2024) TRAFFIC CONDITIONS ........................................................................................ 47
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5.1 Roadway Improvements ............................................................................................................. 47
5.2 EAP (2024) (Acacia Site Only) Project Traffic Volume Forecasts ................................................ 47
5.3 EAP (2024) (Acacia + Shea Sites) Project Traffic Volume Forecasts ............................................ 47
5.4 Intersection Operations Analysis ................................................................................................ 50
5.5 Traffic Signal Warrants Analysis .................................................................................................. 50
5.6 Roadway Segment Capacity Analysis .......................................................................................... 51
5.7 Off-Ramp Queuing Analysis ........................................................................................................ 51
5.8 Deficiencies and Improvements ................................................................................................. 52
6 OPENING YEAR CUMULATIVE (2024) TRAFFIC CONDITIONS ................................................. 53
6.1 Roadway Improvements ............................................................................................................. 53
6.2 Opening Year Cumulative (2024) Without Project Traffic Volume Forecasts ............................ 53
6.3 Opening Year Cumulative (2024) With Project Traffic Volume Forecasts .................................. 53
6.4 Intersection Operations Analysis ................................................................................................ 56
6.5 Traffic Signal Warrants Analysis .................................................................................................. 57
6.6 Roadway Segment Capacity Analysis .......................................................................................... 57
6.7 Off-Ramp Queuing Analysis ........................................................................................................ 58
6.8 Deficiencies and Improvements ................................................................................................. 58
7 LOCAL AND REGIONAL FUNDING MECHANISMS .................................................................. 61
7.1 Measure “I” Funds ...................................................................................................................... 61
7.2 City of Fontana Development Impact Fee (DIF) .......................................................................... 61
7.3 Fair Share Contribution ............................................................................................................... 62
8 VEHICLE MILES TRAVELED ................................................................................................... 63
8.1 Project Screening ........................................................................................................................ 63
8.2 VMT Methodology ...................................................................................................................... 65
8.3 VMT Analysis ............................................................................................................................... 65
8.4 Conclusion ................................................................................................................................... 68
9 REFERENCES ........................................................................................................................ 69
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APPENDICES
APPENDIX 1.1: APPROVED TRAFFIC STUDY SCOPING AGREEMENT
APPENDIX 1.2: SITE ADJACENT QUEUING WORKSHEETS
APPENDIX 3.1: EXISTING TRAFFIC COUNTS
APPENDIX 3.2: EXISTING (2021) CONDITIONS INTERSECTION OPERATIONS ANALYSIS WORKSHEETS
APPENDIX 3.3: EXISTING (2021) CONDITIONS TRAFFIC SIGNAL WARRANT ANALYSIS WORKSHEETS
APPENDIX 3.4: EXISTING (2021) CONDITIONS OFF-RAMP QUEUING ANALYSIS WORKSHEETS
APPENDIX 5.1: EAP (2024) (ACACIA SITE ONLY) CONDITIONS INTERSECTION OPERATIONS ANALYSIS
WORKSHEETS
APPENDIX 5.2: EAP (2024) (ACACIA + SHEA SITES) CONDITIONS INTERSECTION OPERATIONS ANALYSIS
WORKSHEETS
APPENDIX 5.3: EAP (2024) (ACACIA SITE ONLY) CONDITIONS TRAFFIC SIGNAL WARRANT ANALYSIS
WORKSHEETS
APPENDIX 5.4: EAP (2024) (ACACIA + SHEA SITES) CONDITIONS TRAFFIC SIGNAL WARRANT ANALYSIS
WORKSHEETS
APPENDIX 5.5: EAP (2024) (ACACIA SITE ONLY) CONDITIONS OFF-RAMP QUEUING ANALYSIS
WORKSHEETS
APPENDIX 5.6: EAP (2024) (ACACIA + SHEA SITES) CONDITIONS OFF-RAMP QUEUING ANALYSIS
WORKSHEETS
APPENDIX 5.7: EAP (2024) (ACACIA SITE ONLY) CONDITIONS INTERSECTION OPERATIONS ANALYSIS
WORKSHEETS WITH IMPROVEMENTS
APPENDIX 5.8: EAP (2024) (ACACIA + SHEA SITES) CONDITIONS INTERSECTION OPERATIONS ANALYSIS
WORKSHEETS WITH IMPROVEMENTS
APPENDIX 6.1: OPENING YEAR CUMULATIVE (2024) WITHOUT PROJECT CONDITIONS INTERSECTION
OPERATIONS ANALYSIS WORKSHEETS
APPENDIX 6.2: OPENING YEAR CUMULATIVE (2024) WITH PROJECT CONDITIONS INTERSECTION
OPERATIONS ANALYSIS WORKSHEETS
APPENDIX 6.3: OPENING YEAR CUMULATIVE (2024) WITHOUT PROJECT CONDITIONS TRAFFIC SIGNAL
WARRANT ANALYSIS WORKSHEETS
APPENDIX 6.4: OPENING YEAR CUMULATIVE (2024) WITH PROJECT CONDITIONS TRAFFIC SIGNAL
WARRANT ANALYSIS WORKSHEETS
APPENDIX 6.5: OPENING YEAR CUMULATIVE (2024) WITHOUT PROJECT CONDITIONS OFF-RAMP
QUEUING ANALYSIS WORKSHEETS
APPENDIX 6.6: OPENING YEAR CUMULATIVE (2024) WITH PROJECT CONDITIONS OFF-RAMP QUEUING
ANALYSIS WORKSHEETS
APPENDIX 6.7: OPENING YEAR CUMULATIVE (2024) WITHOUT PROJECT CONDITIONS INTERSECTION
OPERATIONS ANALYSIS WORKSHEETS WITH IMPROVEMENTS
APPENDIX 6.8: OPENING YEAR CUMULATIVE (2024) WITH PROJECT CONDITIONS INTERSECTION
OPERATIONS ANALYSIS WORKSHEETS WITH IMPROVEMENTS
APPENDIX 8.1: SBCTA VMT SCREENING TOOL
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LIST OF EXHIBITS
EXHIBIT 1-1: LOCATION MAP ................................................................................................................ 2
EXHIBIT 1-2: PRELIMINARY SITE PLAN .................................................................................................. 4
EXHIBIT 1-3: STUDY AREA .................................................................................................................... 7
EXHIBIT 1-4: SITE ADJACENT ROADWAY AND SITE ACCESS RECOMMENDATIONS ............................... 11
EXHIBIT 3-1: EXISTING NUMBER OF THROUGH LANES AND INTERSECTION CONTROLS ....................... 22
EXHIBIT 3-3: CITY OF FONTANA BICYCLE FACILITIES ............................................................................ 24
EXHIBIT 3-4: EXISTING PEDESTRIAN FACILITIES ................................................................................... 25
EXHIBIT 3-5: EXISTING TRANSIT ROUTES ............................................................................................ 27
EXHIBIT 3-6: EXISTING TRUCK ROUTES ............................................................................................... 28
EXHIBIT 3-7: EXISTING (2021) TRAFFIC VOLUMES ............................................................................... 29
EXHIBIT 4-1: PROJECT (TRUCK) TRIP DISTRIBUTION ............................................................................ 39
EXHIBIT 4-2: PROJECT (PASSENGER CAR) TRIP DISTRIBUTION ............................................................. 40
EXHIBIT 4-3: PROJECT ONLY TRAFFIC VOLUMES ................................................................................. 42
EXHIBIT 4-4: CUMULATIVE DEVELOPMENT LOCATION MAP ............................................................... 43
EXHIBIT 4-5: CUMULATIVE ONLY TRAFFIC VOLUMES .......................................................................... 44
EXHIBIT 5-1: EAP (ACACIA SITE ONLY) TRAFFIC VOLUMES ................................................................... 48
EXHIBIT 5-2: EAP (ACACIA + SHEA SITES) TRAFFIC VOLUMES .............................................................. 49
EXHIBIT 6-1: OPENING YEAR CUMULATIVE (2024) WITHOUT PROJECT TRAFFIC VOLUMES ................. 54
EXHIBIT 6-2: OPENING YEAR CUMULATIVE (2024) WITH PROJECT TRAFFIC VOLUMES ........................ 55
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LIST OF TABLES
TABLE 1-1: INTERSECTION ANALYSIS LOCATIONS ................................................................................. 8
TABLE 1-2: ROADWAY SEGMENT ANALYSIS LOCATIONS ....................................................................... 8
TABLE 1-3: SUMMARY OF INTERSECTION LEVEL OF SERVICE BY ANALYSIS SCENARIO ........................... 8
TABLE 1-4: SUMMARY OF IMPROVEMENTS BY ANALYSIS SCENARIO .................................................. 13
TABLE 2-1: SIGNALIZED INTERSECTION LOS THRESHOLDS ................................................................... 16
TABLE 2-2: UNSIGNALIZED INTERSECTION LOS THRESHOLDS .............................................................. 17
TABLE 2-3: TRAFFIC SIGNAL WARRANT ANALYSIS LOCATIONS ............................................................ 18
TABLE 2-4: THRESHOLDS OF SIGNIFICANT IMPACT ............................................................................. 20
TABLE 3-1: INTERSECTION ANALYSIS FOR EXISTING (2021) CONDITIONS ............................................ 30
TABLE 3-2: ROADWAY SEGMENT CAPACITY ANALYSIS FOR EXISTING (2021) CONDITIONS .................. 31
TABLE 3-3: PEAK HOUR FREEWAY OFF-RAMP QUEUING SUMMARY FOR EXISTING (2021) CONDITIONS
32
TABLE 3-4: INTERSECTION ANALYSIS FOR EXISTING (2021) CONDITIONS WITH IMPROVEMENTS ........ 33
TABLE 4-1: PROJECT TRIP GENERATION SUMMARY ............................................................................ 37
TABLE 4-2: PROJECT TRIP GENERATION SUMMARY (ACTUAL VEHICLES AND PCE) .............................. 38
TABLE 4-3: CUMULATIVE DEVELOPMENT LAND USE SUMMARY ......................................................... 45
TABLE 5-1: INTERSECTION ANALYSIS FOR EAP (2024) CONDITIONS .................................................... 50
TABLE 5-2: ROADWAY SEGMENT CAPACITY ANALYSIS FOR EAP (2024) CONDITIONS .......................... 51
TABLE 5-3: PEAK HOUR FREEWAY OFF-RAMP QUEUING SUMMARY FOR EAP (2024) CONDITIONS ..... 51
TABLE 5-4: INTERSECTION ANALYSIS FOR OPENING YEAR CUMULATIVE (2024) CONDITIONS WITH
IMPROVEMENTS ................................................................................................................................ 52
TABLE 6-1: INTERSECTION ANALYSIS FOR OPENING YEAR CUMULATIVE (2024) CONDITIONS ............. 56
TABLE 6-2: ROADWAY SEGMENT CAPACITY ANALYSIS FOR OPENING YEAR CUMULATIVE (2024)
CONDITIONS ...................................................................................................................................... 57
TABLE 6-3: PEAK HOUR FREEWAY OFF-RAMP QUEUING SUMMARY FOR OPENING YEAR CUMULATIVE
(2024) CONDITIONS ........................................................................................................................... 58
TABLE 6-4: INTERSECTION ANALYSIS FOR OPENING YEAR CUMULATIVE (2024) CONDITIONS WITH
IMPROVEMENTS ................................................................................................................................ 59
TABLE 6-5: ROADWAY SEGMENT CAPACITY ANALYSIS FOR OPENING YEAR CUMULATIVE (2024)
CONDITIONS WITH IMPROVEMENTS .................................................................................................. 59
TABLE 7-1: PROJECT FAIR SHARE CALCULATIONS ............................................................................... 62
TABLE 8-1: EMPLOYMENT ESTIMATES ................................................................................................ 66
TABLE 8-2: PROJECT VMT PER EMPLOYEE ........................................................................................... 66
TABLE 8-3: PROJECT VMT PER EMPLOYEE COMPARISON .................................................................... 66
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LIST OF ABBREVIATED TERMS
(1) Reference
ADT Average Daily Traffic
CA MUTCD California Manual on Uniform Traffic Control Devices
Caltrans California Department of Transportation
CEQA California Environmental Quality Act
CMP Congestion Management Program
CTR Commute Trip Reduction
DIF Development Impact Fee
EAP Existing Ambient Growth plus Project
HCM Highway Capacity Manual
ITE Institute of Transportation Engineers
LOS Level of Service
NCHRP National Cooperative Highway Research Program
OD Origination-Destination
OPR Office of Planning and Research
OYC Opening Year Cumulative
PCE Passenger Car Equivalents
PHF Peak Hour Factor
Project North Fontana Industrial Complex (Acacia)
SB 743 Senate Bill 743
SBTAM San Bernardino Transportation Analysis Model
SHS State Highway System
TA Traffic Analysis
TAZ Traffic Analysis Zone
TDM Transportation Demand Management
TPA Transit Priority Area
V/C Volume to Capacity
VMT Vehicle Miles Traveled
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1 INTRODUCTION
This report presents the results of the Traffic Analysis (TA) for the proposed North Fontana
Industrial Complex (Acacia) development (“Project”), which is located east of Sierra Avenue and
south of Duncan Canyon Road in the City of Fontana, as shown on Exhibit 1-1. Exhibit 1-1 depicts
the location of the proposed Project in relation to the existing roadway network and the study
area intersections.
The purpose of this TA is to evaluate the potential deficiencies related to traffic, identify
circulation system deficiencies that may result from the development of the proposed Project,
and to recommend improvements to resolve identified deficiencies in order to achieve
acceptable operational conditions at study area intersections and ensure consistency with the
City’s General Plan. This TA has been prepared in accordance with the City of Fontana’s Traffic
Impact Analysis (TIA) Guidelines for Vehicle Miles Traveled (VMT) and Level of Service Assessment
(October 21, 2020) and through consultation with City of Fontana staff during the scoping process.
(1) The Project traffic study scoping agreement is provided in Appendix 1.1 of this TA, which has
been reviewed and approved by City of Fontana staff.
1.1 SUMMARY OF FINDINGS
1.1.1 VEHICLE MILES TRAVELED
Changes to California Environmental Quality Act (CEQA) Guidelines were adopted in December
2018, which require all lead agencies to adopt Vehicle Miles Traveled (VMT) as a replacement for
automobile delay-based level of service (LOS) as the new measure for identifying transportation
impacts for land use projects. This statewide mandate went into effect July 1, 2020. To aid in the
transition from LOS to VMT, the Governor’s Office of Planning and Research (OPR) published its
Technical Advisory on Evaluating Transportation Impacts in CEQA (Technical Advisory). (2) Based
on OPR’s Technical Advisory specific procedures for complying with the new CEQA requirements
for VMT analysis the City of Fontana adopted Traffic Impact Analysis Guidelines for Vehicle Miles
Traveled and Level of Service Assessment (City Guidelines), which documents the City’s VMT
analysis methodology and approved impact thresholds. Consistent with City Guidelines a
comprehensive VMT analysis was performed and the Project was evaluated against screening
criteria as outlined in the City Guidelines. The Project was not found to meet any available
screening criteria, and a model based VMT analysis was performed. The Project’s VMT analysis
found the Project to exceed the City’s VMT per employee threshold by 35.42% in baseline
conditions and 13.34% in cumulative conditions. The Project is determined to have a potentially
significant transportation impact. Since the future tenants are unknown at this time,
implementation of the feasible TDM measures discussed above cannot be guaranteed to reduce
the Project generated VMT per employee; the Project’s VMT impact is considered significant and
unavoidable.
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EXHIBIT 1-1: LOCATION MAP
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1.1.2 LEVEL OF SERVICE (LOS) ANALYSIS
The Project is to construct the following improvements as design features in conjunction with
development of the site:
• Project to construct both driveways on Sierra Avenue with stop controls for egress traffic from
the Project with free flow traffic along Sierra Avenue. These driveways will be restricted to right-
in/right-out access only.
• Project to construct driveway on Duncan Canyon Road with stop controls for egress traffic from
the Project with free flow traffic along Duncan Canyon Road. This driveway is proposed to have
full access (no turn restrictions).
• Project to construct Sierra Avenue at its ultimate half-width (east side) as a Major Highway (132-
foot right-of-way) from the southern Project boundary to the northern Project boundary
consistent with the City’s standards. This includes the construction of a raised median which will
be used to physically prohibit left turns into and out of the Project at the two driveways proposed
on Sierra Avenue.
Additional details and intersection lane geometrics are provided in Section 1.6 Recommendations
of this report. The proposed Project is not anticipated to require the construction of any off-site
improvements, however, there are improvement needs identified at off-site intersections for
future cumulative traffic study scenarios. As such, the Project Applicant’s responsibility for the
Project’s contributions towards deficient off-site intersections is fulfilled through payment of fair
share and/or payment into pre-existing fee programs (if applicable) that would be assigned to
the future construction of the identified recommended improvements. The Project Applicant
would be required to pay requisite fees and/or fair share contributions consistent with the City’s
requirements (see Section 8 Local and Regional Funding Mechanisms).
1.2 PROJECT OVERVIEW
The proposed Project includes the development of two buildings: a 296,297 square foot
warehouse building (Building 1) and a smaller 88,746 square foot warehouse building (Building
2). It is anticipated to have an Opening Year of 2024. The proposed preliminary site plan for the
proposed Project is shown on Exhibit 1-2. As indicated on Exhibit 1-2, access to the Project site
will be provided to two limited access driveways via Sierra Avenue and to one full access driveway
via Duncan Canyon Road. Regional access to the Project site is available from the I-15 Freeway
via Sierra Avenue and the I-210 Freeway via Sierra Avenue to the south.
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EXHIBIT 1-2: PRELIMINARY SITE PLAN
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In order to develop the traffic characteristics of the proposed project, trip-generation statistics
published in the Institute of Transportation Engineers (ITE) Trip Generation Manual (11th Edition,
2021) for the following land uses has been utilized (3):
• Warehousing (ITE Land Use Code 150)
• High-Cube Fulfillment Center (Non-Sort) (ITE Land Use Code 155)
• High-Cube Cold Storage Warehouse (ITE Land Use Code 157)
The Project is anticipated to generate a net total of 918 passenger car equivalent (PCE) two-way
trips per day with 69 PCE AM peak hour trips and 75 PCE PM peak hour trips. The assumptions
and methods used to estimate the Project’s trip generation characteristics are discussed in
greater detail in Section 4.1 Project Trip Generation of this report.
1.3 ANALYSIS SCENARIOS
For the purposes of this traffic study, potential deficiencies to traffic and circulation have been
assessed for each of the following conditions:
• Existing (2021)
• Existing plus Ambient Growth plus Project (EAP) (Acacia Site Only)
• Existing plus Ambient Growth plus Project (EAP) (Acacia + Shea Sites)
• Opening Year Cumulative (2024) Without Project
• Opening Year Cumulative (2024) With Project
It should be noted, per the City of Fontana traffic study guidelines, projects that are anticipated
to generate between 50 and 100 two-way peak hour trips will only require an opening year
assessment. As such, no horizon year buildout traffic scenarios were included in the traffic study
since the proposed Project is not anticipated to generate more than 100 peak hour trips.
1.3.1 EXISTING (2021) CONDITIONS
Information for Existing (2021) traffic conditions is disclosed to represent the baseline traffic conditions
as they existed at the time this report was prepared.
1.3.2 EAP CONDITIONS
The Existing plus Ambient Growth plus Project (EAP) traffic conditions analysis determines traffic
deficiencies that would occur on the existing roadway system with the addition of Project traffic.
To account for background traffic growth, an ambient growth factor from Existing conditions of
6.12% is included for EAP (2024) traffic conditions (2 percent per year compounded annually over
3 years). The ambient growth is consistent with the growth used by other projects in the area
within the City of Fontana. For the purposes of the EAP analysis scenario, the analysis has been
performed assuming the proposed Project only and also with the near-by Sierra Industrial Facility
project proposed by Shea as Master Case No. 21-090, Design Review Project No. 21-034,
Tentative Parcel Map No. 21-018, General Plan Amendment No. 21-004, and Zone Change
Application No. 21.006.
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1.3.3 OPENING YEAR CUMULATIVE (2024) CONDITIONS
The Opening Year Cumulative (2024) traffic conditions analysis determines the potential near-
term cumulative circulation system deficiencies. To account for background traffic growth, traffic
associated with other known cumulative development projects in conjunction with an ambient
growth from Existing (2021) traffic conditions of 6.12% is included for Opening Year Cumulative
(2024) traffic conditions (2 percent per year compounded annually over 3 years). This analysis
scenario includes a list of other cumulative development projects which was compiled from
information provided by the City of Fontana and is consistent with other recent studies in the
study area.
1.4 STUDY AREA
To ensure that this TA satisfies the City of Fontana’s traffic study requirements, Urban
Crossroads, Inc. prepared a Project traffic study scoping package for review by City of Fontana
staff prior to the preparation of this report. This agreement provides an outline of the Project
study area, trip generation, trip distribution, and analysis methodology. The agreement
approved by the City of Fontana is included in Appendix 1.1 of this TA.
1.4.1 INTERSECTIONS
The 8 study area intersections shown on Exhibit 1-3 and listed in Table 1-1 were selected for
evaluation in this TA based on consultation with City of Fontana staff. The study area includes
intersections where the Project is anticipated to contribute 50 or more peak hour trips per the
City of Fontana’s traffic study guidelines. (1) The “50 peak hour trip” criteria represent a
minimum number of trips at which a typical intersection would have the potential to be
substantively affected by a given development proposal. The 50 peak hour trip criterion is a
traffic engineering rule of thumb that is accepted and widely used within San Bernardino County
for estimating a potential area of influence (i.e., study area).
The intent of a CMP is to more directly link land use, transportation, and air quality, thereby
prompting reasonable growth management programs that will effectively utilize new
transportation funds, alleviate traffic congestion and related deficiencies, and improve air
quality. Counties within California have developed CMPs with varying methods and strategies to
meet the intent of the CMP legislation.
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EXHIBIT 1-3: STUDY AREA
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TABLE 1-1: INTERSECTION ANALYSIS LOCATIONS
ID Intersection Location Jurisdiction CMP?
1 Sierra Av. & I-15 SB Ramps City of Fontana, Caltrans No
2 Sierra Av. & I-15 NB Ramps City of Fontana, Caltrans No
3 Sierra Av. & Riverside Av. City of Fontana No
4 Sierra Av. & Terra Vista Dr. City of Fontana No
5 Sierra Av. & Duncan Canyon Rd. City of Fontana No
6 Sierra Av. & Driveway 1 City of Fontana No
7 Sierra Av. & Driveway 2 City of Fontana No
8 Driveway 3 & Duncan Canyon Rd. City of Fontana No
1.4.2 ROADWAY SEGMENTS
At the request of City staff, daily volume-to-capacity (v/c) has been evaluated for the following
roadway segment listed in Table 1-2:
TABLE 1-2: ROADWAY SEGMENT ANALYSIS LOCATIONS
ID Roadway Segments
1 Sierra Avenue, Riverside Av. to Terra Vista Dr.
1.5 DEFICIENCIES
This section provides a summary of deficiencies by analysis scenario. Section 2 Methodologies
provides information on the methodologies used in the analysis and Section 5 EAP (2024) Traffic
Conditions and Section 6 Opening Year Cumulative (2024) Traffic Conditions. A summary of LOS
results for all analysis scenarios is presented on Table 1-3.
TABLE 1-3: SUMMARY OF INTERSECTION LEVEL OF SERVICE BY ANALYSIS SCENARIO
#Intersection AM PM AM PM AM PM AM PM AM PM1Sierra Av. & I-15 SB Ramps2Sierra Av. & I-15 NB Ramps
3 Sierra Av. & Riverside Av.
4 Sierra Av. & Terra Vista Dr.
5 Sierra Av. & Duncan Canyon Rd.
5 Sierra Av. & Driveway 1 N/A N/A N/A N/A N/A N/A
5 Sierra Av. & Driveway 2 N/A N/A N/A N/A N/A N/A6Driveway 3 & Duncan Canyon Rd.N/A N/A N/A N/A N/A N/A
= A - D = E = F
Existing (2021)
EAP (Acacia Site
Only)
EAP (Acacia +
Shea Sites)
OYC (2024)
Without
Project
OYC (2024)
With Project
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1.5.1 EXISTING (2021) CONDITIONS
Intersections
The study area intersections are currently operating at an acceptable LOS during the peak hours,
with the exception of the following intersections:
• Sierra Avenue & I-15 SB Ramps (#1) – LOS F AM peak hour only
• Sierra Avenue & Riverside Avenue (#3) – LOS F AM and PM peak hours
Roadway Segments
The study area roadway segment is currently operating at an acceptable LOS based on the City’s
planning level daily roadway capacity thresholds.
Off-Ramp Queues
There are no movements that are currently experiencing queuing issues during the weekday AM
or weekday PM peak 95th percentile traffic flows.
1.5.2 EAP CONDITIONS
Intersections
Consistent with Existing (2021) traffic conditions, the following study area intersections are
anticipated to operate at an unacceptable LOS during the peak hours under EAP (Acacia site only
and Acacia + Shea sites) traffic conditions:
• Sierra Avenue & I-15 SB Ramps (#1) – LOS F AM peak hour only
• Sierra Avenue & Riverside Avenue (#3) – LOS F AM and PM peak hours
Roadway Segments
Consistent with Existing (2021) traffic conditions, the study area roadway segment is anticipated
to continue to operate at an acceptable LOS based on the City’s planning level daily roadway
capacity thresholds EAP (Acacia site only and Acacia + Shea sites) traffic conditions.
Off-Ramp Queues
Consistent with Existing (2021) traffic conditions, there are no movements that are anticipated
to experience queuing issues during the weekday AM or weekday PM peak 95th percentile traffic
flows with the addition of Project traffic (Acacia site only and Acacia + Shea sites).
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1.5.3 OPENING YEAR CUMULATIVE (2024) CONDITIONS
Intersections
The following study area intersections are anticipated to operate at an unacceptable LOS during
the peak hours under Opening Year Cumulative (2024) Without Project traffic conditions:
• Sierra Avenue & I-15 SB Ramps (#1) – LOS F AM peak hour only
• Sierra Avenue & Riverside Avenue (#3) – LOS F AM and PM peak hours
The following additional study area intersection is anticipated to operate at an unacceptable LOS
with the addition of Project traffic, in addition to the intersections previously identified under
Opening Year Cumulative (2024) Without Project traffic conditions:
• Sierra Avenue & I-15 SB Ramps (#1) – LOS E PM peak hour (same location listed above for Without
Project conditions but has a new peak hour deficiency)
Roadway Segments
The following study area roadway segment is anticipated to operate at an unacceptable LOS
based on the City’s planning level daily roadway capacity thresholds for Opening Year Cumulative
(2024) Without Project and With Project traffic conditions:
• Terra Vista Drive to Riverside Avenue (#1) – LOS F
Off-Ramp Queues
There are no movements that are anticipated to experience queuing issues during the weekday
AM or weekday PM peak 95th percentile traffic flows under Opening Year Cumulative (2024)
Without Project and With Project traffic conditions.
1.6 RECOMMENDATIONS
1.6.1 SITE ADJACENT AND SITE ACCESS RECOMMENDATIONS
The following recommendations are based on the minimum improvements needed to
accommodate site access and maintain acceptable peak hour operations. The site adjacent
recommendations are shown on Exhibits 1-4.
Recommendation 1 – Sierra Avenue & Driveway 1 (#6) – The following improvements are
necessary to accommodate site access:
• Project to install a stop sign on the westbound approach and accommodate a northbound right
turn lane. Driveway is to be restricted to right-in/right-out access only for passenger cars and
trucks.
• Construct a 2nd northbound through lane along the Project’s frontage.
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EXHIBIT 1-4: SITE ADJACENT ROADWAY AND SITE ACCESS RECOMMENDATIONS
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Recommendation 2 – Sierra Avenue & Driveway 2 (#7) – The following improvements are
necessary to accommodate site access:
• Project to install a stop sign on the westbound approach and accommodate a northbound right
turn lane. Driveway is to be restricted to right-in/right-out access only for passenger cars only.
• Construct a 2nd northbound through lane along the Project’s frontage.
Recommendation 3 – Driveway 3 & Duncan Canyon Road (#8) – The following improvements
are necessary to accommodate site access:
• Project to install a stop sign on the northbound approach and accommodate an eastbound right
turn lane. Driveway is to accommodate full access (no turn restrictions) and will serve passenger
cars only (no trucks on Duncan Canyon Road).
Recommendation 4 – Sierra Avenue – Sierra Avenue is a north-south oriented roadway located
on the western boundary of the Project. Project to construct Sierra Avenue at its ultimate half-
width (east side) as a Major Highway (132-foot right-of-way) from the southern Project boundary
to the northern Project boundary consistent with the City’s standards. This includes the
construction of a raised median which will be used to physically prohibit left turns into and out
of the Project at the two driveways proposed on Sierra Avenue.
1.6.2 QUEUING ANALYSIS
A queuing analysis has been performed for the Project driveways and the site adjacent
intersection of Citrus Avenue and Duncan Canyon Road for Opening Year Cumulative (2024) With
Project traffic conditions. The traffic modeling and signal timing optimization software package
SimTraffic has been utilized to assess the queues. SimTraffic is designed to model networks of
signalized and unsignalized intersections, with the primary purpose of checking and fine-tuning
signal operations. SimTraffic uses the input parameters from Synchro to generate random
simulations. These random simulations generated by SimTraffic have been utilized to determine
the 95th percentile queue lengths observed for each applicable turn lane. A SimTraffic simulation
has been recorded up to 5 times, during the weekday AM and weekday PM peak hours, and has
been seeded for 30-minute periods with 60-minute recording intervals. Queuing analysis
worksheets for the weekday AM and PM peak hours are provided in Appendix 1.2 of this report.
1.6.3 OFF-SITE RECOMMENDATIONS
The recommended improvements needed to address the cumulative deficiencies identified
under Existing (2021), EAP, and Opening Year Cumulative (2024) traffic conditions are shown in
Table 1-4. For those improvements listed in Table 1-4 and not constructed as part of the Project,
the Project Applicant’s responsibility for the Project’s contributions towards deficient
intersections is fulfilled through payment of fair share that would be assigned to construction of
the identified recommended improvements. The Project Applicant would be required to pay fair
share fees consistent with the City’s requirements (see Section 7 Local and Regional Funding
Mechanisms).
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TABLE 1-4: SUMMARY OF IMPROVEMENTS BY ANALYSIS SCENARIO
1 Sierra Av. & I-15 SB Ramps Fontana,
Caltrans
Add 2nd NB
Left-Turn lane
Same Same Same Same
No Fair Share
$2,309,184 3.8%$86,783
3 Add Traffic
Signal
Same Same Same Same No Fair Share $600,000 5.1%$30,585
$2,909,184 $117,368
$30,585
$86,783
1 Improvements included in the SBCTA Necus Study Fee program or the SSBCTA Measure I Funding
2 Identifies the Project's responsibility to construct an improvement or contribute fair share towards the implementation of the improvements shown.3
4 Program improvements constructed by project may be eligible for fee credit, at discretion of City. See Table 7-1 for fair share calculations.
5 Total project fair share contribution consists of the improvements which are not already included in the City of Fontana's DIF for those intersections wholly or partially within the City of Fontana.
6 Total project fair share contribution consists of the improvements which are not already included in a fee program for those intersections wholly or partially within Caltrans' jurisdiction.
#Intersection Location Jurisdiction Existing
(2021)
EAP (Acacia
Site Only)
EAP (Acacia +
Shea Sites)
Improvements in
Fee Program?1
Project
Responsibility2 Total Cost3 Fair Share %4OYC 2024 NP OYC 2024 WP Estimated Fair
Share Cost
Sierra Av. & Riverside Av.Fontana
Total Costs for OYC (2024) With Project Improvements
Total Project Fair Share Contribution to Fontana5
Total Project Fair Share Contribution to Caltrans6
Costs have been estimated using the data provided in Appendix G of the San Bernardino County CMP (2016 Update) for preliminary construction costs. Appendix G costs escalated by a factor of 1.71 to
reflect 2021/2022 conditions, except for Traffic Signals.
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1.7 VEHICLE MILES TRAVELED (VMT) ANALYSIS
Consistent with City Guidelines a comprehensive VMT analysis was performed, and the Project
was evaluated against screening criteria as outlined in the City Guidelines. The Project was not
found to meet any available screening criteria, and a model based VMT analysis was performed.
The Project’s VMT analysis found the Project to exceed the City’s VMT per employee threshold
by 35.42% in baseline conditions and 13.34% in cumulative conditions. The Project is determined
to have a potentially significant transportation impact. Since the future tenants are unknown at
this time, implementation of the feasible TDM measures discussed above cannot be guaranteed
to reduce the Project generated VMT per employee; the Project’s VMT impact is considered
significant and unavoidable. Detailed analysis can be found in Section 8 Vehicle Miles Traveled
Analysis of this TS.
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2 METHODOLOGIES
This section of the report presents the methodologies used to perform the traffic analyses
summarized in this report. The methodologies described are generally consistent with the City
of Fontana’s traffic study guidelines. (1)
2.1 LEVEL OF SERVICE
Traffic operations of roadway facilities are described using the term "Level of Service" (LOS). LOS
is a qualitative description of traffic flow based on several factors such as speed, travel time,
delay, and freedom to maneuver. Six levels are typically defined ranging from LOS A,
representing completely free-flow conditions, to LOS F, representing breakdown in flow resulting
in stop-and-go conditions. LOS E represents operations at or near capacity, an unstable level where
vehicles are operating with the minimum spacing for maintaining uniform flow.
2.2 INTERSECTION CAPACITY ANALYSIS
The definitions of LOS for interrupted traffic flow (flow restrained by the existence of traffic
signals and other traffic control devices) differ slightly depending on the type of traffic control.
The LOS is typically dependent on the quality of traffic flow at the intersections along a roadway.
The Highway Capacity Manual (HCM) methodology expresses the LOS at an intersection in terms
of delay time for the various intersection approaches. (4) The HCM uses different procedures
depending on the type of intersection control.
2.2.1 SIGNALIZED INTERSECTIONS
The City of Fontana and Caltrans require signalized intersection operations analysis based on the
methodology described in the HCM (6th Edition). Intersection LOS operations are based on an
intersection’s average control delay. Control delay includes initial deceleration delay, queue
move-up time, stopped delay, and final acceleration delay. For signalized intersections, LOS is
directly related to the average control delay per vehicle and is correlated to a LOS designation as
described in Table 2-1. Study area intersections have been evaluated using the Synchro (Version
10) analysis software package.
The traffic modeling and signal timing optimization software package Synchro (Version 10) is
utilized to analyze signalized intersections within the study area. Synchro is a macroscopic traffic
software program that is based on the signalized intersection capacity analysis as specified in the
HCM. Macroscopic level models represent traffic in terms of aggregate measures for each
movement at the study intersections. Equations are used to determine measures of
effectiveness such as delay and queue length. The level of service and capacity analysis
performed by Synchro takes into consideration optimization and coordination of signalized
intersections within a network.
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TABLE 2-1: SIGNALIZED INTERSECTION LOS THRESHOLDS
Description
Average Control
Delay (Seconds), V/C ≤ 1.0
Level of
Service, V/C ≤ 1.0
Level of
Service, V/C > 1.0
Operations with very low delay occurring with favorable
progression and/or short cycle length. 0 to 10.00 A F
Operations with low delay occurring with good
progression and/or short cycle lengths. 10.01 to 20.00 B F
Operations with average delays resulting from fair
progression and/or longer cycle lengths. Individual cycle failures begin to appear. 20.01 to 35.00 C F
Operations with longer delays due to a combination of
unfavorable progression, long cycle lengths, or high V/C
ratios. Many vehicles stop and individual cycle failures
are noticeable.
35.01 to 55.00 D F
Operations with high delay values indicating poor
progression, long cycle lengths, and high V/C ratios.
Individual cycle failures are frequent occurrences. This
is considered to be the limit of acceptable delay.
55.01 to 80.00 E F
Operation with delays unacceptable to most drivers
occurring due to over saturation, poor progression, or
very long cycle lengths
80.01 and up F F
Source: HCM, 6th Edition
A saturation flow rate of 1900 has been utilized for all study area intersections located within the
City of Fontana. The peak hour traffic volumes are adjusted using a peak hour factor (PHF) to
reflect peak 15-minute volumes. Common practice for LOS analysis is to use a peak 15-minute
rate of flow. However, flow rates are typically expressed in vehicles per hour. The PHF is the
relationship between the peak 15-minute flow rate and the full hourly volume (e.g., PHF = [Hourly
Volume] / [4 x Peak 15-minute Flow Rate]). The use of a 15-minute PHF produces a more detailed
analysis as compared to analyzing vehicles per hour. Existing PHFs have been used for all analysis
scenarios. Per the HCM, PHF values over 0.95 often are indicative of high traffic volumes with
capacity constraints on peak hour flows while lower PHF values are indicative of greater
variability of flow during the peak hour. (4)
California Department of Transportation (Caltrans)
Per the California Department of Transportation (Caltrans) traffic study guidance, the traffic
modeling and signal timing optimization software package Synchro (Version 10) has also been
utilized to analyze signalized intersections under Caltrans’ jurisdiction, which include interchange
to arterial ramps (i.e., I-15 Freeway ramps at Beech Avenue and Duncan Canyon Road). (5) Signal
timing for the freeway arterial-to-ramp intersections have been obtained from Caltrans District
8 and were utilized for the purposes of this analysis.
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2.2.2 UNSIGNALIZED INTERSECTIONS
The City of Fontana requires the operations of unsignalized intersections be evaluated using the
methodology described the HCM. (4) The LOS rating is based on the weighted average control
delay expressed in seconds per vehicle (see Table 2-2).
TABLE 2-2: UNSIGNALIZED INTERSECTION LOS THRESHOLDS
Description
Average Control Delay Per Vehicle
(Seconds)
Level of Service, V/C
≤ 1.0
Level of Service, V/C
> 1.0
Little or no delays. 0 to 10.00 A F
Short traffic delays. 10.01 to 15.00 B F
Average traffic delays. 15.01 to 25.00 C F
Long traffic delays. 25.01 to 35.00 D F
Very long traffic delays. 35.01 to 50.00 E F
Extreme traffic delays with intersection capacity exceeded. > 50.00 F F
Source: HCM, 6th Edition
At two-way or side-street stop-controlled intersections, LOS is calculated for each controlled
movement and for the left turn movement from the major street, as well as for the intersection
as a whole. For approaches composed of a single lane, the delay is computed as the average of
all movements in that lane. Per the HCM, the highest delay and associated LOS on the minor
approach is reported for two-way stop-controlled intersections. For all-way stop controlled
intersections, LOS is computed for the intersection as a whole and the average delay is reported
(similar to signalized intersections).
2.3 TRAFFIC SIGNAL WARRANT ANALYSIS METHODOLOGY
The term "signal warrants" refers to the list of established criteria used by the Caltrans and other
public agencies to quantitatively justify or ascertain the potential need for installation of a traffic
signal at an otherwise unsignalized intersection. This TA uses the signal warrant criteria
presented in the latest edition of the Caltrans California Manual on Uniform Traffic Control
Devices (CA MUTCD). (6)
The signal warrant criteria for Existing conditions are based upon several factors, including
volume of vehicular and pedestrian traffic, frequency of accidents, and location of school areas.
The Caltrans CA MUTCD indicates that the installation of a traffic signal should be considered if
one or more of the signal warrants are met. (6) Specifically, this TA utilizes the Peak Hour
Volume-based Warrant 3 as the appropriate representative traffic signal warrant analysis for
existing study area intersections for all analysis scenarios. Warrant 3 is appropriate to use for this
TA because it provides specialized warrant criteria for intersections with rural characteristics
(e.g., located in communities with populations of less than 10,000 persons or with adjacent major
streets operating above 40 miles per hour). For the purposes of this study, the speed limit was
the basis for determining whether Urban or Rural warrants were used for a given intersection.
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Traffic signal warrant analyses were performed for the following unsignalized study area
intersection shown in Table 2-3:
TABLE 2-3: TRAFFIC SIGNAL WARRANT ANALYSIS LOCATIONS
ID Intersection Location Jurisdiction
3 Sierra Av. & Riverside Av. Fontana
5 Sierra Av. & Duncan Canyon Rd. Fontana
8 Driveway 3 & Duncan Canyon Rd. Fontana
The Existing conditions traffic signal warrant analysis is presented in the subsequent section,
Section 3 Area Conditions of this report. The traffic signal warrant analyses for future conditions
are presented in Section 5 EAP (2024) Traffic Conditions and Section 6 Opening Year Cumulative
(2024) Traffic Conditions of this report.
It is important to note that a signal warrant defines the minimum condition under which the
installation of a traffic signal might be warranted. Meeting this threshold condition does not
require that a traffic control signal be installed at a particular location, but rather, that other
traffic factors and conditions be evaluated in order to determine whether the signal is truly
justified. It should also be noted that signal warrants do not necessarily correlate with LOS. An
intersection may satisfy a signal warrant condition and operate at or above acceptable LOS or
operate below acceptable LOS and not meet a signal warrant.
2.4 ROADWAY SEGMENT CAPACITY ANALYSIS
Roadway segment operations have been evaluated using the daily roadway segment capacities
for each type of roadway. The roadway segment capacities utilized for this analysis are based on
the Fontana Forward General Plan Update 2015-2035 (June 8, 2018). (7)
These roadway capacities are “rule of thumb” estimates for planning purposes and are affected
by such factors as intersections (spacing, configuration and control features), degree of access
control, roadway grades, design geometrics (horizontal and vertical alignment standards), sight
distance, vehicle mix (truck and bus traffic) and pedestrian bicycle traffic. As such, where the
average daily volume (ADT) based roadway segment analysis indicates a deficiency (unacceptable
LOS), a review of the more detailed peak hour intersection analysis and progression analysis are
undertaken. The more detailed peak hour intersection analysis explicitly accounts for factors
that affect roadway capacity. Therefore, for the purposes of this analysis, roadway segment
widening is typically only recommended if the peak hour intersection analysis indicates the need
for additional through lanes.
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2.5 FREEWAY OFF-RAMP QUEUING ANALYSIS
Consistent with Caltrans requirements, the 95th percentile queuing of vehicles has been assessed
at the off-ramps to determine potential queuing deficiencies at the freeway ramp intersections
at the I-15 Freeway at Sierra Avenue interchange. Specifically, the queuing analysis is utilized to
identify any potential queuing and “spill back” onto the I-15 Freeway mainline from the off-
ramps.
The traffic progression analysis tool and HCM intersection analysis program, Synchro, has been
used to assess the potential deficiencies/needs of the intersections with traffic added from the
proposed Project. Storage (turn-pocket) length recommendations at the ramps have been based
upon the 95th percentile queue resulting from the Synchro progression analysis. The footnote
from the Synchro output sheets indicates if the 95th percentile cycle exceeds capacity. Traffic is
simulated for two complete cycles of the 95th percentile traffic in Synchro in order to account for
the effects of spillover between cycles. In practice, the 95th percentile queue shown will rarely
be exceeded and the queues shown with the footnote are acceptable for the design of storage
bays. The 95th percentile queue is derived from the average queue plus 1.65 standard deviations.
The 95th percentile queue is not necessarily ever observed it is simply based on statistical
calculations.
2.6 MINIMUM LEVEL OF SERVICE (LOS)
The definition of an intersection deficiency has been obtained from each of the applicable
surrounding jurisdictions.
2.6.1 CITY OF FONTANA
The City’s General Plan recommends a LOS standard of LOS C. Intersections which are forecast to
operate at unsatisfactory conditions (i.e., at LOS worse than LOS C for city intersections) shall be
identified as cumulatively deficient intersections. Therefore, any intersection operating at LOS
D, E, or F will be considered deficient for the purposes of this analysis. (1)
2.6.2 CALTRANS
Senate Bill 743 (SB 743), approved in 2013, endeavors to change the way transportation impacts
will be determined according to the California Environmental Quality Act (CEQA). The Office of
Planning and Research (OPR) has recommended the use of vehicle miles traveled (VMT) as the
replacement for automobile delay-based LOS. Caltrans acknowledges automobile delay will no
longer be considered a CEQA impact for development projects and will use VMT as the metric for
determining impacts on the State Highway System (SHS). However, LOS D has been utilized as
the target LOS for Caltrans facilities, consistent with other recent studies in the City of Fontana.
2.7 DEFICIENCY CRITERIA
For the intersections that lie within the City of Fontana, determination of direct project-related
deficiencies will be based on a comparison of without and with project levels of service for each
analysis year. A project-related deficiency occurs if project traffic increases the average delay at
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an intersection by more than the thresholds identified on Table 2-4. The thresholds for LOS A, B,
and C do not apply to projects consistent with the General Plan.
TABLE 2-4: THRESHOLDS OF SIGNIFICANT IMPACT
Cumulative traffic impacts are deficiencies that are not directly caused by the Project but occur
as a result of regional growth combined with that or other nearby cumulative development
projects. Cumulative impacts utilize the same thresholds of significant impacts as shown on Table
2-4. The Project’s contribution to a particular cumulative transportation deficiency is deemed
cumulatively considerable if the Project adds significant traffic to the forecasted deficiency (Per
Table 2-4). A Project’s contribution to a cumulatively considerable impact can be reduced to less
than significant if the Project is required to implement or fund its fair share of improvements
designed to alleviate the potential cumulative impact. If full funding of future cumulative
improvements is not reasonably assured, a temporary unmitigated cumulative impact may occur
until the needed improvement is fully funded and constructed.
2.8 PROJECT FAIR SHARE CALCULATION METHODOLOGY
In cases where this TA identifies that the Project would contribute additional traffic volumes to
traffic deficiencies, Project fair share costs of improvements necessary to address deficiencies
have been identified. The Project’s fair share cost of improvements is determined based on the
following equation, which is the ratio of Project traffic to new traffic, and new traffic is total
future (Horizon Year) traffic less existing baseline traffic:
Project Fair Share % = Project AM/PM Traffic / (OYC 2024 With Project AM/PM Total Traffic –
Existing AM/PM Traffic)
The project fair share percentage has been calculated for both the AM peak hour and PM peak
hour and the highest of the two has been selected. The Project fair share contribution
calculations are presented in Section 7 Local and Regional Funding Mechanisms of this TA. The
cost of implementing the improvements shown on Table 1-3 have been estimated based on the
preliminary construction cost estimates found in Appendix G of the San Bernardino County CMP
in conjunction with a total cost escalation factor of 1.71 to more closely approximate current
(2021) costs. These cost estimates have been utilized in conjunction with the Project fair share
percentages to determine the Project’s fair share cost of the recommended improvements (see
Table 7-1). These estimates are a rough order of magnitude only as they are intended only for
discussion purposes and do not imply any legal responsibility or formula for contributions or
physical improvements.
Pre-Project LOS Significant Impact Threshold1
A/B 10.0 Seconds
C 8.0 Seconds
D 5.0 Seconds
E 2.0 Seconds
F 1.0 Second
Source: Fontana Traffic Study Guidelines, October 2020
1 Increase in delay
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3 AREA CONDITIONS
This section provides a summary of the existing circulation network, the City of Fontana General
Plan Circulation Network, and a review of existing peak hour intersection operations, traffic signal
warrant, roadway segment, and off-ramp queuing analyses.
3.1 EXISTING CIRCULATION NETWORK
Pursuant to the scoping agreement with City of Fontana staff (Appendix 1.1), the study area
includes a total of 8 existing and future intersections as shown previously on Exhibit 1-2. Exhibit
3-1 illustrates the study area intersections located near the proposed Project and identifies the
number of through traffic lanes for existing roadways and intersection traffic controls.
3.2 GENERAL PLAN CIRCULATION ELEMENTS
Exhibit 3-2 shows the City of Fontana General Plan Circulation Element. The City of Fontana
General Plan does not include roadway cross-sections in its General Plan.
Major Highways are four-to-six-lane divided roadways (typically divided by a raised median or
painted two-way turn-lane). These roadways serve both regional through-traffic and inter-city
traffic and typically direct traffic onto and off-of the freeways. The following study area roadways
within the City of Fontana are classified as a Major Highways:
• Sierra Avenue
• Riverside Avenue
Primary Highways are four-lane roadways and may include a painted median. These roadways
typically direct traffic through major development areas. The following study area roadway
within the City of Fontana is classified as a Primary Highways:
• Sierra Avenue, north of the I-15 northbound ramps
Collector Streets are two-lane streets, providing one lane in each direction. The following study
area roadway within the study area is classified as a Collector Street:
• Duncan Canyon Road, east of Sierra Avenue
3.3 BICYCLE & PEDESTRIAN FACILITIES
The City of Fontana bike facilities are shown on Exhibit 3-3. Sierra Avenue is a proposed Class II
bike facility (striped, on-street bike lanes). Existing pedestrian facilities are shown on Exhibit 3-
4. As shown on Exhibit 3-4, there are limited pedestrian facilities along Sierra Avenue.
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EXHIBIT 3-1: EXISTING NUMBER OF THROUGH LANES AND INTERSECTION CONTROLS
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EXHIBIT 3-2: CITY OF FONTANA HIERARCHY OF STREETS
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EXHIBIT 3-3: CITY OF FONTANA BICYCLE FACILITIES
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EXHIBIT 3-4: EXISTING PEDESTRIAN FACILITIES
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3.4 TRANSIT SERVICE
The study area is currently served by Omnitrans Transit Agency with bus services along parts of
Riverside Avenue and Terra Vista Drive. Route 22 is the closest route that provides service along
Riverside Avenue to Live Oak Avenue, however, there are currently no transit routes that provide
service along Sierra Avenue that could potentially serve the Project site in the future. The transit
services are illustrated on Exhibit 3-5. Transit service is reviewed and updated by Omnitrans
periodically to address ridership, budget, and community demand needs. Changes in land use
can affect these periodic adjustments which may lead to either enhanced or reduced service
where appropriate.
3.4 TRUCK ROUTES
The City of Fontana designated truck route map is shown on Exhibit 3-6. Sierra Avenue is
identified as a designated truck route within the City. These designated truck route maps, in
conjunction with direction from City staff, have been utilized to route truck traffic to and from
the Project and future cumulative development projects throughout the study area.
3.5 EXISTING TRAFFIC COUNTS
The intersection LOS analysis is based on the traffic volumes observed during the peak hour
conditions using traffic count data collected in 2021. The following peak hours were selected for
analysis:
• Weekday AM Peak Hour (peak hour between 7:00 AM and 9:00 AM)
• Weekday PM Peak Hour (peak hour between 4:00 PM and 6:00 PM)
The raw manual peak hour turning movement traffic count data sheets are included in Appendix
3.1. The traffic counts include the following vehicle classifications: Passenger Cars, 2-Axle Trucks,
3-Axle Trucks, and 4 or More Axle Trucks. To represent the effects large trucks, buses and
recreational vehicles have on traffic flow; all trucks were converted into PCE. By their size alone,
these vehicles occupy the same space as two or more passenger cars. In addition, the time it
takes for them to accelerate and slow-down is much longer than for passenger cars and varies
depending on the type of vehicle and number of axles. For the purpose of this analysis, a PCE
factor of 2.0 has been applied to 2-axle trucks, 2.5 for 3-axle trucks, and 3.0 for 4+-axle trucks to
estimate each turning movement. These factors are consistent with the values recommended
for use in the City’s Traffic Study Guidelines.
24-hour tube counts were collected at two locations; first one was on Sierra Avenue south of
Riverside Avenue; second one was on Sierra Avenue south of Duncan Canyon Road. Where actual
24-hour tube count data was not available, Existing ADT volumes were based upon factored
intersection peak hour counts collected by Urban Crossroads, Inc. using the following formula for
each intersection leg (see Exhibit 3-7):
Weekday PM Peak Hour (Approach Volume + Exit Volume) x 11.36 = Leg Volume
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EXHIBIT 3-5: EXISTING TRANSIT ROUTES
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EXHIBIT 3-6: EXISTING TRUCK ROUTES
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EXHIBIT 3-7: EXISTING (2021) TRAFFIC VOLUMES
↱↱565(573)↱147(108)
←↲↓↰↓↳↓↳↰41(17)↓↳↰306(197)↰↑↰↑↱↑↱↑↱
→↱↱3(1)
←
↓↳↰13(10)↓↓
↑↱↑↑
→
##Average Daily Trips
16(11)
##(##)AM(PM) Peak Hour Intersection Volumes
450
45015,55015,55015,550848(516)848(516)402(799)15,5507 Sierra Av. & Driveway 2 8 Driveway 3 & Duncan
Canyon Rd.243(179)464(1383)492(784)399(370)326(581)51(28)3(3)
162(306)
Sierra Av. & I-15 SB Ramps 2 Sierra Av. & I-15 NB
Ramps 3 Sierra Av. & Riverside Av.4 Sierra Av. & Terra Vista Dr.27,6008,050
100(91)
1(2)
494(426)
215(778)835(506)15,20015(25)402(799)246(517)145(260)388(776)14(23)1(2)450
15,75012,850 13,55015,20025,2506 Sierra Av. & Driveway 15Sierra Av. & Duncan
Canyon Rd.434(518)530(311)35(117)807(331)6,150
27,60013,400
12,450534(467)25,450382(348)806(679)70(95)5,550
25,2506,050
1
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A comparison of the PM peak hour and daily traffic volumes of various roadway segments within
the study area indicated that the peak-to-daily relationship is approximately 8.81 percent. As
such, the above equation utilizing a factor of 11.36 estimates the ADT volumes on the study area
roadway segments assuming a peak-to-daily relationship of approximately 8.81 percent (i.e.,
1/0.0881 = 11.36) and was assumed to sufficiently estimate average daily traffic (ADT) volumes
for planning-level analyses. Existing weekday AM and weekday PM peak hour intersection
volumes are shown on Exhibit 3-7. Note volumes shown are in actual vehicles. The PCE volumes
used for the peak hour operations analyses can be found in the applicable appendix with the
intersection operations analysis worksheets.
3.6 EXISTING (2021) INTERSECTION OPERATIONS ANALYSIS
Signal timing for the Sierra Avenue & I-15 Freeway Ramps and Sierra Avenue and Terra Vista Drive
intersection have been obtained from Caltrans and the City of Fontana, respectively, to reflect
the existing signal timing. It should be noted that for the purposes of this TS, no optimization of
signal timing has been performed for the existing and future analysis scenarios unless noted
otherwise (as recommended improvements). Existing peak hour traffic operations have been
evaluated for the study area intersections based on the analysis methodologies presented in
Section 2.2 Intersection Capacity Analysis of this report. The intersection operations analysis
results are summarized in Table 3-1 which indicates that the study area intersections are
currently operating at an acceptable LOS during the peak hours, with the exception of the
following intersections:
• Sierra Avenue & I-15 Southbound Ramps (#1) – LOS F AM peak hour only
• Sierra Avenue & Riverside Avenue (#3) – LOS F AM and PM peak hours
TABLE 3-1: INTERSECTION ANALYSIS FOR EXISTING (2021) CONDITIONS
Delay1 Level of
Traffic (secs.)Service
#Intersection Control2 AM PM AM PM
1 TS 101.8 29.8 F C
2 Sierra Av. & I-15 NB Ramps TS 10.5 27.9 B C
3 Sierra Av. & Riverside Av.AWS 114.9 194.8 F F
4 Sierra Av. & Terra Vista Dr.TS 8.4 5.5 A A
5 Sierra Av. & Duncan Canyon Rd.CSS 18.3 17.4 C C
6 Sierra Av. & Driveway 1 CSS
7 Sierra Av. & Driveway 2 CSS
8 Driveway 3 & Duncan Canyon Rd.CSS
BOLD = LOS does not meet the applicable jurisdictional requirements (i.e., unacceptable LOS).
1
2 TS = Traffic Signal; CSS = Cross-Street Stop; AWS = All Way Stop
Per the Highway Capacity Manual (6th Edition), overall average intersection delay and level of service
are shown for intersections with a traffic signal or all way stop control. For intersections with cross
street stop control, the delay and level of service for the worst individual movement (or movements
sharing a single lane) are shown. HCM delay reported in seconds.
Sierra Av. & I-15 SB Ramps
Future Intersection
Future Intersection
Future Intersection
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The intersection operations analysis worksheets are included in Appendix 3.2 of this TA.
3.7 EXISTING (2021) TRAFFIC SIGNAL WARRANTS ANALYSIS
Traffic signal warrants for Existing traffic conditions are based on existing peak hour intersection
turning volumes. The following unsignalized study area intersection currently warrants a traffic
signal for Existing (2021) traffic conditions (see Appendix 3.3):
• Sierra Avenue & Riverside Avenue (#3)
3.8 EXISTING (2021) ROADWAY SEGMENT CAPACITY ANALYSIS
The City of Fontana General Plan provides roadway volume capacity values and are approximate
figures only and are used at the General Plan level to assist in determining the roadway functional
classification (number of through lanes) needed to meet traffic demand. Table 3-2 provides a
summary of the Existing (2021) traffic conditions roadway segment capacity analysis. As shown
in Table 3-2, the study area roadway segment is currently operating at an acceptable LOS based
on the City’s planning level daily roadway capacity thresholds.
TABLE 3-2: ROADWAY SEGMENT CAPACITY ANALYSIS FOR EXISTING (2021) CONDITIONS
3.9 EXISTING (2021) OFF-RAMP QUEUING ANALYSIS
A queuing analysis was performed for the off-ramps at the I-15 Freeway at the Sierra Avenue
interchange to assess vehicle queues for the off ramps that may potentially result in deficient
peak hour operations at the ramp-to-arterial intersections and may potentially “spill back” onto
the I-15 Freeway mainline. Queuing analysis findings are presented in Table 3-3. It is important
to note that off-ramp lengths are consistent with the measured distance between the
intersection and the freeway mainline. As shown in Table 3-3, there are no movements that are
currently experiencing queuing issues during the weekday AM or weekday PM peak 95th
percentile traffic flows. Worksheets for Existing (2021) traffic conditions off-ramp queuing
analysis are provided in Appendix 3.4.
Roadway LOS Existing
#Roadway Section Capacity1 2021 V/C2 LOS3
1 Sierra Av.2U 18,000 13,550 0.75 C
2 V/C = Volume to Capacity Ratio
3 LOS = Level of Service
1 Maximum roadway capacities are based on the Fontana Forward General Plan Update 2015-2035. The roadway capacity for a 2-lane
Major Highway has been interpolated from the 6-lane Major Highway capacity obtained from the General Plan update.
Segment Limits
Riverside Av. to Terra Vista Dr.
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TABLE 3-3: PEAK HOUR FREEWAY OFF-RAMP QUEUING SUMMARY FOR EXISTING (2021) CONDITIONS
3.10 RECOMMENDED IMPROVEMENTS
This section provides a summary of Project deficiencies and recommended improvements. Based
on the City of Fontana and County of San Bernardino deficiency criteria discussed in Section 2.7
Deficiency Criteria, the following intersections were found to be deficient.
3.10.1 RECOMMENDED IMPROVEMENTS TO ADDRESS DEFICIENCIES AT INTERSECTIONS
The effectiveness of the recommended improvement strategies to address Existing (2021) traffic
deficiencies are presented on Table 3-4. The Project Applicant shall contribute to these
improvements through payment of regional DIF fees or fair share contribution as identified on
Table 1-3. Worksheets for Existing (2024) traffic conditions, with improvements, HCM calculation
worksheets are provided in Appendix 3.5.
AM PM
Sierra Av. & I-15 SB Ramps WBL 190 217
2,3 176 Yes Yes
WBL/T 1,125 218
2 181 Yes Yes
WBR 190 37 28 Yes Yes
Sierra Av. & I-15 NB Ramps EBL 365 127 391 2 Yes Yes
EBT 1,410 125 424 2 Yes Yes
EBR 365 46 126 Yes Yes
2 95th percentile volume exceeds capacity, queue may be longer. Queue shown is maximum after two cycles.
1 Stacking Distance is acceptable if the required stacking distance is less than or equal to the stacking distance provided. An additional 15
feet of stacking which is assumed to be provided in the transition for turn pockets is reflected in the stacking distance shown on this table,
3 Although 95th percentile queue is anticipated to exceed the available storage for the turn lane, the adjacent lane has sufficient storage to
accommodate any spillover without spilling back and affecting the I-15 Freeway mainline.
AM Peak Hour PM Peak HourIntersectionMovement
Available
Stacking
Distance
(Feet)
Existing (2021)
95th Percentile Queue (Feet)Acceptable? 1
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TABLE 3-4: INTERSECTION ANALYSIS FOR EXISTING (2021) CONDITIONS WITH IMPROVEMENTS
3.10.2 RECOMMENDED IMPROVEMENTS TO ADDRESS DEFICIENCIES ON ROADWAY SEGMENT
As shown previously on Table 3-2, study area roadway segment currently is operating at an
acceptable capacity under Existing (2021) traffic conditions. As such, no improvements have
been recommended.
3.10.3 RECOMMENDED IMPROVEMENTS TO ADDRESS DEFICIENCIES ON OFF-RAMP QUEUES
As shown previously on Table 3-3, there are no movements are currently experiencing any
queuing issues during the weekday AM or weekday PM peak 95th percentile traffic flows for
Existing (2021) traffic conditions. As such, no improvements have been recommended.
Delay2 Level of
Traffic Northbound Southbound Eastbound Westbound (secs.)Service
#Intersection Control3 L T R L T R L T R L T R AM PM AM PM
1 Sierra Av. & I-15 SB Ramps- Without Improvements TS 2 2 0 0 2 1 0 0 0 1 1 1 101.8 29.8 F C
- With Improvements4 TS 2 2 0 0 2 1 0 0 0 1 1 1 24.5 17.1 C B
3 Sierra Av. & Riverside Av.
- Without Improvements AWS 0 2 0 1 2 0 0 0 0 1 0 1 114.9 194.8 F F
- With Improvements TS 0 2 0 1 2 0 0 0 0 1 0 1 21.6 38.2 C D
*BOLD = Level of Service (LOS) does not meet the applicable jurisdictional requirements (i.e., unacceptable LOS).
1 When a right turn is designated, the lane can either be striped or unstriped. To function as a right turn lane there must be sufficient width for right
turning vehicles to travel outside the through lanes.
2 Per the Highway Capacity Manual (6th Edition), overall average intersection delay and level of service are shown for intersections with a traffic
signal or all way stop control. For intersections with cross street stop control, the delay and level of service for the worst individual movement (or
movements sharing a single lane) are shown.
3 AWS = All Way Stop; TS = Traffic Signal; TS = Improvement
4 Improvement includes modifying the traffic signal to an 80-second cycle length during the AM peak and 90-second cycle length during the PM peak.
Intersection Approach Lanes1
L = Left; T = Through; R = Right; > = Right-Turn Overlap Phasing; >> = Free Right Turn Lane; 1 = Improvement
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4 PROJECTED FUTURE TRAFFIC
The proposed Project includes the development of two buildings: a 296,297 square foot
warehouse building (Building 1) and a smaller 88,746 square foot warehouse building (Building
2). It is anticipated that the Project would be developed in a single phase with an anticipated
Opening Year of 2024. For the purposes of this analysis, the following driveways will be assumed
to provide access to the Project site:
• Driveway 1 on Sierra Avenue – Right-in/Right-out access (passenger cars and trucks)
• Driveway 2 on Sierra Avenue – Right-in/Right-out access (passenger cars only)
• Driveway 3 on Duncan Canyon Road –Full access (passenger cars only)
Regional access to the Project site is available from the I-15 Freeway via Sierra Avenue and the I-
210 Freeway via Sierra Avenue to the south.
4.1 PROJECT TRIP GENERATION
In order to develop the traffic characteristics of the proposed project, trip-generation statistics
published in the ITE Trip Generation Manual (11th Edition, 2021) for the following land uses has
been utilized (3):
• ITE land use code 150 (Warehousing) has been used to derive site specific trip generation
estimates for up to 88,746 square feet (100% of Building 2). A warehouse is primarily devoted to
the storage of materials but may also include office and maintenance areas. The vehicle mix has
also been obtained from the ITE’s latest Trip Generation Manual. The truck percentages were
further broken down by axle type per the following SCAQMD recommended truck mix: 2-Axle =
16.7%; 3-Axle = 20.7%; 4+-Axle = 62.6%.
• ITE land use code 157 (High-Cube Cold Storage Warehouse) has been used to derive site specific
trip generation estimates for up to 29,630 square feet (10% of Building 1). High-cube cold storage
warehouses include warehouses characterized by the storage and/or consolidation of
manufactured goods (and to a lesser extent, raw materials) prior to their distribution to retail
locations or other warehouses. High-cube cold storage warehouses are facilities typified by
temperature-controlled environments for frozen food or other perishable products. The High-
Cube Cold Storage Warehouse vehicle mix (passenger cars versus trucks) has also been obtained
from the ITE’s latest Trip Generation Manual. The truck percentages were further broken down
by axle type per the following SCAQMD recommended truck mix: 2-Axle = 34.7%; 3-Axle = 11.0%;
4+-Axle = 54.3%.
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• High-Cube Fulfillment Center Warehouse (ITE Land Use Code 155) has been used to derive site
specific trip generation estimates for up to 266,667 square feet (90% of Building 1). The ITE Trip
Generation Manual has trip generation rates for high-cube fulfillment center use for both non-
sort and sort facilities (ITE land use code 155). As defined by ITE, a high-cube warehouse is a
building that typically has at least 200,000 gross square feet of floor area, has a ceiling height of
24 feet or more, and is used primarily for the storage and/or consolidation of manufactured goods
(and to a lesser extent, raw materials) prior to their distribution to retail locations or other
warehouses. A typical high-cube warehouse has a high level of on-site automation and logistics
management. The automation and logistics enable highly efficient processing of goods through
the high-cube warehouse. The ITE Trip Generation Manual has two subcategories for the High-
Cube Fulfillment Center use: sort and non-sort. ITE describes a sort facility as a fulfillment center
that ships out smaller items, requiring extensive sorting, typically by manual means. In
comparison, a non-sort facility is a fulfillment center that ships large box items that are processed
primarily with automation rather than through manual means. Some limited assembly and
repackaging may occur within the facility. Given this description, a non-sort facility has been
assumed for the purposes of calculating trip generation for the proposed Project. The vehicle mix
(passenger cars versus trucks) has been obtained from the ITE’s latest Trip Generation Manual.
The truck percentages were further broken down by axle type per the following SCAQMD
recommended truck mix: 2-Axle = 16.7%; 3-Axle = 20.7%; 4+-Axle = 62.6%.
The Project trip generation summary is shown in Table 4-1. As shown in Table 4-2, the Project is
anticipated to generate a net total of 704 two-way trips per day with 59 AM peak hour trips and
61 PM peak hour trips. In comparison, the proposed Project is anticipated to generate a net total
of 918 PCE trip-ends per day with 69 PCE AM peak hour trips and 75 PCE PM peak hour trips.
4.2 PROJECT TRIP DISTRIBUTION
The Project trip distribution represents the directional orientation of traffic to and from the
Project site. Trip distribution is the process of identifying the probable destinations, directions
or traffic routes that will be utilized by Project traffic. The potential interaction between the
planned land uses and surrounding regional access routes are considered to identify the route
where the Project traffic would distribute. Truck distribution patterns are based on truck routes,
the site’s proximity to the regional freeway system and likely distribution of traffic if a future
tenant is known. Passenger car distribution patterns are based on existing and planned land uses
in the area along with the planned circulation system. Exhibit 4-1 illustrates the truck trip
distribution patterns for the Project and Exhibit 4-2 illustrates the passenger car trip distribution
patterns.
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TABLE 4-1: PROJECT TRIP GENERATION SUMMARY
ITE LU AM Peak Hour PM Peak Hour
Land Use1 Units2 Code In Out Total In Out Total
Warehousing3 TSF 150 0.131 0.039 0.170 0.050 0.130 0.180 1.710
Passenger Cars 0.116 0.034 0.150 0.042 0.108 0.150 1.110
2-Axle Trucks 0.002 0.001 0.003 0.003 0.002 0.005 0.100
3-Axle Trucks 0.002 0.002 0.004 0.003 0.003 0.006 0.124
4+-Axle Trucks 0.007 0.006 0.013 0.010 0.009 0.019 0.376
High-Cube Fulfillment Center (Non-Sort)3 TSF 155 0.122 0.028 0.150 0.062 0.098 0.160 1.810
Passenger Cars 0.105 0.025 0.130 0.059 0.091 0.150 1.580
2-Axle Trucks 0.002 0.001 0.003 0.001 0.001 0.002 0.038
3-Axle Trucks 0.002 0.002 0.004 0.001 0.001 0.002 0.048
4+-Axle Trucks 0.006 0.007 0.013 0.003 0.003 0.006 0.144
High-Cube Cold Storage Warehouse3 TSF 157 0.085 0.025 0.110 0.034 0.086 0.120 2.120
Passenger Cars 0.062 0.018 0.080 0.025 0.065 0.090 1.665
2-Axle Trucks 0.003 0.007 0.010 0.005 0.005 0.010 0.260
3-Axle Trucks 0.001 0.002 0.003 0.002 0.001 0.003 0.083
4+-Axle Trucks 0.005 0.011 0.016 0.008 0.008 0.016 0.113
Passenger Car Equivalent (PCE) Trip Generation Rates4
Warehousing3 TSF 150 0.131 0.039 0.170 0.050 0.130 0.180 1.710
Passenger Cars 0.116 0.034 0.150 0.042 0.108 0.150 1.110
2-Axle Trucks (PCE = 2.0)0.004 0.003 0.007 0.006 0.004 0.010 0.200 3-Axle Trucks (PCE = 2.5)0.005 0.005 0.010 0.008 0.008 0.016 0.311
4+-Axle Trucks (PCE = 3.0)0.021 0.017 0.038 0.030 0.026 0.056 1.127
High-Cube Fulfillment Center (Non-Sort)3 TSF 155 0.122 0.028 0.150 0.062 0.098 0.160 1.810
Passenger Cars 0.105 0.025 0.130 0.059 0.091 0.150 1.580
2-Axle Trucks (PCE = 2.0)0.004 0.003 0.007 0.002 0.001 0.003 0.077
3-Axle Trucks (PCE = 2.5)0.005 0.005 0.010 0.003 0.003 0.005 0.119
4+-Axle Trucks (PCE = 3.0)0.018 0.020 0.038 0.009 0.010 0.019 0.432
High-Cube Cold Storage Warehouse3 TSF 157 0.085 0.025 0.110 0.034 0.086 0.120 2.120
Passenger Cars 0.062 0.018 0.080 0.025 0.065 0.090 1.665
2-Axle Trucks (PCE = 2.0)0.006 0.015 0.021 0.010 0.011 0.021 0.521 3-Axle Trucks (PCE = 2.5)0.003 0.006 0.008 0.005 0.003 0.008 0.206
4+-Axle Trucks (PCE = 3.0)0.015 0.034 0.049 0.024 0.025 0.049 0.338
1 Trip Generation Source: Institute of Transportation Engineers (ITE), Trip Generation Manual, Eleventh Edition (2021).
2 TSF = thousand square feet
3 Truck Mix: South Coast Air Quality Management District’s (SCAQMD) recommended truck mix, by axle type.
Normalized % - Without Cold Storage: 16.7% 2-Axle trucks, 20.7% 3-Axle trucks, 62.6% 4-Axle trucks.
Normalized % - With Cold Storage: 34.7% 2-Axle trucks, 11.0% 3-Axle trucks, 54.3% 4-Axle trucks.
4 PCE factors: 2-axle = 2.0; 3-axle = 2.5; 4+-axle = 3.0.
Daily
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TABLE 4-2: PROJECT TRIP GENERATION SUMMARY (ACTUAL VEHICLES AND PCE)
Land Use Quantity Units1 In Out Total In Out Total Daily
Warehousing (Building 2)88.746 TSF Passenger Cars: 10 3 13 4 10 14 100
2-axle Trucks: 0 0 0 0 0 0 10
3-axle Trucks: 0 0 0 0 0 0 12
4+-axle Trucks: 1 0 1 1 1 2 34
Total Truck Trips (Actual Vehicles):1 0 1 1 1 2 56
Total Trips (Actual Vehicles)2 11 3 14 5 11 16 156
High-Cube Cold Storage (10% Building 1)29.630 TSF Passenger Cars: 2 1 3 1 2 3 50
2-axle Trucks: 0 0 0 0 0 0 8
3-axle Trucks: 0 0 0 0 0 0 2
4+-axle Trucks: 0 0 0 0 0 0 4
Total Truck Trips (Actual Vehicles):0 0 0 0 0 0 14
Total Trips (Actual Vehicles)2 2 1 3 1 2 3 64
High-Cube Fulfillment (Non-Sort) (90% Building 1)266.667 TSF Passenger Cars: 28 7 35 16 24 40 422
2-axle Trucks: 1 0 1 0 0 0 10
3-axle Trucks: 1 1 2 0 0 0 14
4+-axle Trucks: 2 2 4 1 1 2 38
Total Truck Trips (Actual Vehicles):4 3 7 1 1 2 62
Total Trips (Actual Vehicles)2 32 10 42 17 25 42 484
Passenger Cars: 40 11 51 21 36 57 572 Total Truck Trips (Actual Vehicles):5 3 8 2 2 4 132
Total Project Trips (Actual Vehicles)2 45 14 59 23 38 61 704
1 TSF = thousand square feet
2 Total Trips = Passenger Cars + Truck Trips.
AM Peak Hour PM Peak Hour
Land Use Quantity Units1 In Out Total In Out Total Daily
Warehousing (Building 2)88.746 TSF Passenger Cars: 10 3 13 4 10 14 100
2-axle Trucks: 0 0 0 1 0 1 18
3-axle Trucks: 0 0 0 1 1 2 28
4+-axle Trucks: 2 1 3 3 2 5 100
Total Truck Trips (PCE):2 1 3 5 3 8 146
Total Trips (PCE)2 12 4 16 9 13 22 246
High-Cube Cold Storage (10% Building 1)29.630 TSF
Passenger Cars: 2 1 3 1 2 3 50
2-axle Trucks: 0 0 0 0 0 0 16 3-axle Trucks: 0 0 0 0 0 0 6
4+-axle Trucks: 0 1 1 1 1 2 10
Total Truck Trips (PCE):0 1 1 1 1 2 32
Total Trips (PCE)2 2 2 4 2 3 5 82
High-Cube Fulfillment (Non-Sort) (90% Building 1)266.667 TSF
Passenger Cars: 28 7 35 16 24 40 422
2-axle Trucks: 1 1 2 1 0 1 20
3-axle Trucks: 1 1 2 1 1 2 32
4+-axle Trucks: 5 5 10 2 3 5 116 Total Truck Trips (PCE):7 7 14 4 4 8 168
Total Trips (PCE)2 35 14 49 20 28 48 590 Passenger Cars: 40 11 51 21 36 57 572
Total Truck Trips (PCE):9 9 18 10 8 18 346
Total Project Trips (PCE)2 49 20 69 31 44 75 918
1 TSF = thousand square feet
2 Total Trips = Passenger Cars + Truck Trips.
AM Peak Hour PM Peak Hour
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EXHIBIT 4-1: PROJECT (TRUCK) TRIP DISTRIBUTION
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EXHIBIT 4-2: PROJECT (PASSENGER CAR) TRIP DISTRIBUTION
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4.3 MODAL SPLIT
The potential for Project trips (non-truck) to be reduced by the use of public transit, walking or
bicycling have not been included as part of the Project’s estimated trip generation. Essentially,
the Project’s traffic projections are "conservative" in that these alternative travel modes would
reduce the forecasted traffic volumes (non-truck trips only).
4.4 PROJECT TRIP ASSIGNMENT
The assignment of traffic from the Project area to the adjoining roadway system is based upon
the Project trip generation, trip distribution, and the arterial highway and local street system
improvements that would be in place by the time of initial occupancy of the Project. Based on
the identified Project traffic generation and trip distribution patterns, Project ADT and peak hour
intersection turning movement volumes are shown on Exhibit 4-3.
4.5 BACKGROUND TRAFFIC
Future year traffic forecasts have been based upon background (ambient) growth at 2.0% per
year for 2024 traffic conditions, consistent with other recent studies performed in the area. The
total ambient growth is 6.12% for 2024 traffic conditions (compounded growth of 2.0 percent
per year over 3 years or 1.023 years). The ambient growth factor is intended to approximate
regional traffic growth. This ambient growth rate is added to existing traffic volumes to account
for area-wide growth not reflected by cumulative development projects. Ambient growth has
been added to daily and peak hour traffic volumes on surrounding roadways, in addition to traffic
generated by the development of future projects that have been approved but not yet built
and/or for which development applications have been filed and are under consideration by
governing agencies. EAP and Opening Year Cumulative (2024) traffic volumes are provided in
Section 5 and 6 of this TA. The traffic generated by the proposed Project was then manually
added to the base volume to determine Opening Year Cumulative “With Project” forecasts.
4.6 CUMULATIVE DEVELOPMENT TRAFFIC
A cumulative project list was developed for the purposes of this analysis through consultation
with planning and engineering staff from the City of Fontana. The cumulative project list includes
known and foreseeable projects that are anticipated to contribute traffic to the study area
intersections. Where applicable, cumulative projects anticipated to contribute measurable
traffic (i.e., 50 or more peak hour trips) to study area intersections have been manually added to
the study area network to generate Opening Year Cumulative (2024) forecasts. In other words,
this list of cumulative development projects has been reviewed to determine which projects
would likely contribute measurable traffic through the study area intersections (e.g., those
cumulative projects in close proximity to the proposed Project). Exhibit 4-4 illustrates the
cumulative development location map. A summary of cumulative development projects and
their proposed land uses are shown on Table 4-3. In an effort to conduct a conservative analysis,
the cumulative projects are added in conjunction with the ambient growth identified in Section
4.5 Background Traffic. Cumulative ADT and peak hour intersection turning movement volumes
are shown on Exhibit 4-5 for near-term traffic conditions.
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EXHIBIT 4-3: PROJECT ONLY TRAFFIC VOLUMES ↰↓↓↰2(1)↓↰↑↱↑↱↑↱↱↳↰4(14)↓↓
↑↱↑↱↑↱↰↱##Average Daily Trips
##(##)AM(PM) Peak Hour Intersection Volumes 25020(11)33(17)4(2)4004(14)25013(10)21(10)40010(24)12(6)450Nominal
1(4)
400
4004(14)9(20)
8 Driveway 3 & Duncan
Canyon Rd.3008(4)250
4504(14)5 Sierra Av. & Duncan
Canyon Rd.6 Sierra Av. & Driveway 1 7 Sierra Av. & Driveway 2 300150 9(22)1(2)30010(24)6(16)3(6)2506(16)2006(3)6(3)Nominal
3008(4)6(3)Nominal
250Nominal
2001 Sierra Av. & I-15 SB Ramps 2 Sierra Av. & I-15 NB
Ramps 3 Sierra Av. & Riverside Av.4 Sierra Av. & Terra Vista Dr.
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EXHIBIT 4-4: CUMULATIVE DEVELOPMENT LOCATION MAP
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EXHIBIT 4-5: CUMULATIVE ONLY TRAFFIC VOLUMES
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TABLE 4-3: CUMULATIVE DEVELOPMENT LAND USE SUMMARY
4.7 NEAR-TERM TRAFFIC CONDITIONS
The “buildup” approach combines existing traffic counts with a background ambient growth
factor to forecast the near-term EAP (2024) and Opening Year Cumulative (2024) traffic
conditions. An ambient growth factor of 2.0% per year, compounded annually, accounts for
background (area-wide) traffic increases that occur over time up to the year 2024 from the year
2021. Traffic volumes generated by cumulative development projects are then added to assess
the Opening Year Cumulative (2024) traffic conditions. Lastly, Project traffic is added to assess
“With Project” traffic conditions. The 2024 roadway network are similar to the existing
conditions roadway network with the exception of future roadways and intersections proposed
to be developed by the Project.
No.Project Name Land Use
City of Fontana:
F1 I-15 Logistics Center (JN:9688)High-Cube Logistic Warehouse 1175.720 TSF
F2 Ventana (JN:13769)Residential 257 DU
F3 Casa Grande Warehouse Warehousing 188.338 TSF
F4 Sierra/Summit Warehouse Warehousing 92.380 TSF
F5 Shady Trails PA 13 & 14 Condominiums 101 DU
F6 Shady Trails PA 16 Condominiums 139 DU
F7 Mango Avenue Industrial Industrial Warehouse 115.100 TSF
F8 Sierra Lakes & Mango C-Store And Pumps Convenience Store w/ Fuel Center 4.000 TSF
Residential Single-Family Detached 509 DU
Townhouse 347 DU
Commercial (retail, service, and convenience)20.000 TSF
Park 20 AC
Multif-Family Detached 986 DU
Multi Family 613 DU
Multiy-Family Attached 1927 DU
Elementary School 12.1 AC
Jr. High/High School 24.4 AC
Parks 31.1 AC
Activity Center (variety of commerical retail and
neighborhood services) 8.8 AC
F11 Sierra Industrial Facility (Shea) MCN No. 21-090 High-Cube Fulfillment/Cold Storage Warehouse 203.000 TSF
1 TSF = Thousand Square Feet; DU = Dwelling Unit; AC = Acres
Quantity1
Summit at Rosena Specific PlanF9
ArboretumF10
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The near-term traffic analysis includes the following traffic conditions, with the various traffic
components:
• EAP (2024) (Acacia Site Only)
o Existing 2021 volumes
o Ambient growth traffic (6.12%)
o Project (Acacia Site Only) Traffic
• EAP (2024) (Acacia + Shea Sites)
o Existing 2021 volumes
o Ambient growth traffic (6.12%)
o Acacia + Shea Sites Traffic
• Opening Year Cumulative (2024) Without Project
o Existing 2021 volumes
o Ambient growth traffic (6.12%)
o Cumulative Traffic (Includes Shea Site)
• Opening Year Cumulative (2024) With Project
o Existing 2021 volumes
o Ambient growth traffic (6.12%)
o Cumulative Traffic (Includes Shea Site)
o Project Traffic (Acacia Site Only)
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5 EAP (2024) TRAFFIC CONDITIONS
This section discusses the methods used to develop EAP (Acacia Site Only) and EAP (Acacia + Shea
Sites) traffic forecasts, and the resulting intersection operations, traffic signal warrant, roadway
segment, and off-ramp queuing analyses.
5.1 ROADWAY IMPROVEMENTS
The lane configurations and traffic controls assumed to be in place for Opening Year Cumulative
(2024) traffic conditions are consistent with those shown previously on Exhibit 3-1, with the
exception of the following:
• Project driveways and those facilities assumed to be constructed by the Project to provide site
access are also assumed to be in place for EAP conditions only (e.g., intersection and roadway
improvements along the Project’s frontage and driveways). The improvements needed to
accommodate site access to the adjacent Shea development has also been assumed for this
analysis scenario.
5.2 EAP (2024) (ACACIA SITE ONLY) PROJECT TRAFFIC VOLUME FORECASTS
This scenario includes Existing traffic volumes plus an ambient growth factor of 6.12% and the
addition of Project (Acacia Site Only) traffic. The ADT and peak hour intersection turning
movement volumes which can be expected for EAP (2024) conditions are shown on Exhibit 5-1.
5.3 EAP (2024) (ACACIA + SHEA SITES) PROJECT TRAFFIC VOLUME FORECASTS
This scenario includes Existing traffic volumes, an ambient growth factor of 6.12%, Project (Acacia
Site) traffic, and traffic associated with the adjacent Shea development. The ADT and peak hour
intersection turning movement volumes which can be expected for EAP (2024) With Project
conditions are shown on Exhibit 5-2.
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14283-04 TA Report REV 48
EXHIBIT 5-1: EAP (ACACIA SITE ONLY) TRAFFIC VOLUMES
↱↱600(608)↱156(115)
←↲↓↰↓↳↓↳↰46(19)↓↳↰325(209)↰↑↰↑↱↑↱↑↱
→↱↱3(1)↱↱←
↓↳↰18(25)↓↓
↑↱↑↱↑↱↰
→↱##Average Daily Trips
##(##)AM(PM) Peak Hour Intersection Volumes 25020(11)460(865)4(2)16,90016(27)4(14)700440(858)21(10)16,900422(847)27(30)17,150Nominal 450
1(4)
17(12)
400
16,900904(562)9(20)
8 Driveway 3 & Duncan
Canyon Rd.16,400886(537)9(6)700
16,950904(562)5 Sierra Av. & Duncan
Canyon Rd.6 Sierra Av. & Driveway 1 7 Sierra Av. & Driveway 2 154(276)16,400172(325)
6,600 13,650 355(639)55(32)14,650271(573)528(848)426(399)27,100264(206)492(1468)29,5003(3)37(124)8,550
106(97)
1(2)
530(455)
228(826)573(499)461(550)14,250
13,500570(334)861(724)74(101)5,950
27,10027,000856(351)405(369)6,550
29,5001 Sierra Av. & I-15 SB Ramps 2 Sierra Av. & I-15 NB
Ramps 3 Sierra Av. & Riverside Av.4 Sierra Av. & Terra Vista Dr.
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EXHIBIT 5-2: EAP (ACACIA + SHEA SITES) TRAFFIC VOLUMES
North Fontana Industrial Complex (Acacia) Traffic Study
14283-04 TA Report REV 50
5.4 INTERSECTION OPERATIONS ANALYSIS
EAP (2024) peak hour traffic operations have been evaluated for the study area intersections
based on the analysis methodologies presented in Section 2.2 Intersection Capacity Analysis of
this report. The intersection analysis results are summarized in Table 5-1, which indicate that the
following study area intersections are anticipated to operate at an unacceptable LOS during the
peak hours under EAP (2024) traffic conditions (both Acacia Site Only and Acacia + Shea Sites):
• Sierra Avenue & I-15 Southbound Ramps (#1) – LOS F AM peak hour only
• Sierra Avenue & Riverside Avenue (#3) – LOS F AM and PM peak hours
The intersection operations analysis worksheets for EAP (2024) (Acacia Site only) and EAP (2024)
(Acacia + Shea Sites) traffic conditions are included in Appendix 5.1 and Appendix 5.2,
respectively, of this TA.
TABLE 5-1: INTERSECTION ANALYSIS FOR EAP (2024) CONDITIONS
5.5 TRAFFIC SIGNAL WARRANTS ANALYSIS
Traffic signal warrants have been performed (based on CA MUTCD) for EAP (2024) traffic
conditions based on peak hour intersection turning movements volumes or planning level (ADT)
volumes. There is no additional unsignalized study area intersection anticipated to meet a traffic
signal warrant under EAP (2024) traffic conditions for both Acacia Site Only and Acacia + Shea
Sites, in addition to the intersections identified previously under Existing (2021) traffic conditions
(see Appendix 5.3 and Appendix 5.4).
Delay1 Level of Delay1 Level of Delay1 Level of(secs.)Service (secs.)Service (secs.)Service
AM PM AM PM AM PM AM PM AM PM AM PM
1 TS 101.8 29.8 F C 118.4 39.6 F D 118.4 39.6 F D
2 Sierra Av. & I-15 NB Ramps TS 10.5 27.9 B C 16.4 34.2 B C 16.4 34.2 B C
3 Sierra Av. & Riverside Av.AWS 114.9 194.8 F F 145.1 >200.0 F F 145.6 >200.0 F F
4 Sierra Av. & Terra Vista Dr.TS 8.4 5.5 A A 9.1 5.7 A A 9.1 5.7 A A
5 Sierra Av. & Duncan Canyon Rd.CSS 18.3 17.4 C C 20.5 19.6 C C 20.6 19.7 C C
6 Sierra Av. & Driveway 1 CSS 11.5 18.2 B C 11.6 18.2 B C
7 Sierra Av. & Driveway 2 CSS 11.6 17.4 B C 11.7 17.7 B C
8 Driveway 3 & Duncan Canyon Rd.CSS 8.8 8.8 A A 8.8 8.8 A A
BOLD = LOS does not meet the applicable jurisdictional requirements (i.e., unacceptable LOS).
1
2 TS = Traffic Signal; CSS = Cross-Street Stop; AWS = All Way Stop
Per the Highway Capacity Manual (6th Edition), overall average intersection delay and level of service are shown for intersections with a
traffic signal or all way stop control. For intersections with cross street stop control, the delay and level of service for the worst
individual movement (or movements sharing a single lane) are shown. HCM delay reported in seconds.
Intersection
Traffic
Control2
Existing (2021)EAP (Acacia Site Only)
Sierra Av. & I-15 SB Ramps
Future Intersection
Future Intersection
Future Intersection
EAP (Acacia + Shea Sites)
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5.6 ROADWAY SEGMENT CAPACITY ANALYSIS
The City of Fontana General Plan provides roadway volume capacity values and are approximate
figures only and are used at the General Plan level to assist in determining the roadway functional
classification (number of through lanes) needed to meet traffic demand. Table 5-2 provides a
summary of the EAP (2024) conditions roadway segment capacity analysis. As shown in Table 5-
2, no study area roadway segments are anticipated to operate at an unacceptable LOS based on
the City’s planning level daily roadway capacity thresholds for EAP (Acacia + Shea Sites) traffic
conditions:
TABLE 5-2: ROADWAY SEGMENT CAPACITY ANALYSIS FOR EAP (2024) CONDITIONS
5.7 OFF-RAMP QUEUING ANALYSIS
Queuing analysis findings for EAP (2024) are presented in Table 5-3. As shown in Table 5-3, there
are no movements that are anticipated to experience queuing issues during the weekday AM or
weekday PM peak 95th percentile traffic flows under EAP (2024) traffic conditions. Worksheets
for EAP (2024) (Acacia Site Only) and EAP (2024) (Acacia + Shea Sites) traffic conditions off-ramp
queuing analyses are provided Appendices 5.5 and 5.6, respectively.
TABLE 5-3: PEAK HOUR FREEWAY OFF-RAMP QUEUING SUMMARY FOR EAP (2024) CONDITIONS
Roadway LOS
#Roadway Section Capacity1 V/C2 LOS3 V/C2 LOS3 V/C2 LOS3
1 Sierra Av.2U 18,000 13,550 0.75 C 14,673 0.82 D 14,749 0.82 D
2 V/C = Volume to Capacity Ratio
3 LOS = Level of Service
1 Maximum roadway capacities are based on the Fontana Forward General Plan Update 2015-2035. The roadway capacity for a 2-lane Major Highway has been interpolated from
the 6-lane Major Highway capacity obtained from the General Plan update.
Existing
(2021)
EAP (Acacia
+ Shea Sites)
EAP (Acacia
Site Only)Segment Limits
Riverside Av. to Terra Vista Dr.
AM PM AM PM AM PM
Sierra Av. & I-15 SB Ramps WBL 190 217 176 No Yes 242 2,3 1942,3 Yes Yes 2432,3 198 2,3 Yes Yes
WBL/T 1,125 218 181 Yes Yes 242 2 2092 Yes Yes 2432 212 2 Yes Yes
WBR 190 37 28 Yes Yes 38 32 Yes Yes 38 32 Yes Yes
Sierra Av. & I-15 NB Ramps EBL 365 127 391 Yes No 137 4212,3 Yes Yes 137 421 2,3 Yes Yes
EBT 1,410 125 424 Yes Yes 135 4542 Yes Yes 135 454 2 Yes YesEBR365 46 126 Yes Yes 50 150 Yes Yes 50 151 Yes Yes
2 95th percentile volume exceeds capacity, queue may be longer. Queue shown is maximum after two cycles.
EAP (Acacia + Shea Sites)
95th Percentile Queue (Feet)Acceptable? 1
AM Peak Hour PM Peak HourAM Peak Hour PM Peak Hour AM Peak Hour PM Peak Hour
1 Stacking Distance is acceptable if the required stacking distance is less than or equal to the stacking distance provided. An additional 15 feet of stacking which is assumed to be provided in the transition for turn pockets is reflected in the stacking distance shown on this table, where applicable.
3 Although 95th percentile queue is anticipated to exceed the available storage for the turn lane, the adjacent lane has sufficient storage to accommodate any spillover without spilling back and
affecting the I-15 Freeway mainline.
Intersection Movement
Available
Stacking
Distance (Feet)
Existing (2021)EAP (Acacia Site Only)
95th Percentile Queue (Feet)Acceptable? 1 95th Percentile Queue (Feet)Acceptable? 1
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5.8 DEFICIENCIES AND IMPROVEMENTS
This section provides a summary of deficiencies, based on the City of Fontana’s deficiency criteria
discussed in Section 2.7 Deficiency Criteria, and improvements needed to improve operations
back to acceptable levels.
5.8.1 IMPROVEMENTS TO ADDRESS DEFICIENCIES AT INTERSECTIONS
The effectiveness of the recommended improvement strategies to address EAP (2024) traffic
deficiencies are presented in Table 5-4. Worksheets for EAP (2024) (Acacia Site Only) and EAP
(2024) (Acacia + Shea Sites) traffic conditions, with improvements, HCM calculation worksheets
are provided in Appendices 5.7 and 5.8, respectively.
TABLE 5-4: INTERSECTION ANALYSIS FOR OPENING YEAR CUMULATIVE (2024) CONDITIONS WITH
IMPROVEMENTS
5.8.2 IMPROVEMENTS TO ADDRESS DEFICIENCIES ON ROADWAY SEGMENTS
As shown previously on Table 5-2, study area roadway segment is anticipated to operate at an
acceptable capacity under EAP (2024) traffic conditions. As such, no improvements have been
recommended.
5.8.3 IMPROVEMENTS TO ADDRESS DEFICIENCIES ON OFF-RAMP QUEUES
As shown previously in Table 5-3, there are no movements that are anticipated to experience
queuing issues during the weekday AM or weekday PM peak 95th percentile traffic flows for
Opening Year Cumulative (2024) traffic conditions. As such, no improvements have been
identified.
Delay2 Level of
Traffic Northbound Southbound Eastbound Westbound (secs.)Service
#Intersection Control3 L T R L T R L T R L T R AM PM AM PM
1 Sierra Av. & I-15 SB Ramps
- Acacia Site Only TS 2 2 0 0 2 1 0 0 0 1 1 1 44.5 16.8 D B
- Acacia + Shea Sites TS 2 2 0 0 2 1 0 0 0 1 1 1 44.6 16.8 D B
3 Sierra Av. & Riverside Av.
- Acacia Site Only AWS 0 2 0 1 2 0 0 0 0 1 0 1 25.1 47.4 C D
- Acacia + Shea Sites TS 0 2 0 1 2 0 0 0 0 1 0 1 25.1 47.5 C D
*BOLD = Level of Service (LOS) does not meet the applicable jurisdictional requirements (i.e., unacceptable LOS).
1 When a right turn is designated, the lane can either be striped or unstriped. To function as a right turn lane there must be sufficient width for right
turning vehicles to travel outside the through lanes.
2 Per the Highway Capacity Manual (6th Edition), overall average intersection delay and level of service are shown for intersections with a traffic
signal or all way stop control. For intersections with cross street stop control, the delay and level of service for the worst individual movement (or
movements sharing a single lane) are shown.
3 AWS = All Way Stop; TS = Traffic Signal; TS = Improvement
Intersection Approach Lanes1
L = Left; T = Through; R = Right; 1 = Improvement
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6 OPENING YEAR CUMULATIVE (2024) TRAFFIC CONDITIONS
This section discusses the methods used to develop Opening Year Cumulative (2024) Without
and With Project traffic forecasts, and the resulting intersection operations, traffic signal warrant,
roadway segment, and off-ramp queuing analyses.
6.1 ROADWAY IMPROVEMENTS
The lane configurations and traffic controls assumed to be in place for Opening Year Cumulative
(2024) traffic conditions are consistent with those shown previously on Exhibit 3-1, with the
exception of the following:
• Project driveways and those facilities assumed to be constructed by the Project to provide site
access are also assumed to be in place for Opening Year Cumulative conditions only (e.g.,
intersection and roadway improvements along the Project’s frontage and driveways, including
Lytle Creek Road).
• Driveways and those facilities assumed to be constructed by cumulative developments to provide
site access are also assumed to be in place for Opening Year Cumulative conditions only (e.g.,
intersection and roadway improvements along the cumulative development’s frontages and
driveways).
6.2 OPENING YEAR CUMULATIVE (2024) WITHOUT PROJECT TRAFFIC VOLUME FORECASTS
This scenario includes Existing traffic volumes plus an ambient growth factor of 6.12% plus traffic
from pending and approved but not yet constructed known development projects in the area.
The Opening Year Cumulative Without Project traffic forecasts include the Sierra Industrial
Facility (Shea) site. The ADT and peak hour intersection turning movement volumes which can
be expected for Opening Year Cumulative (2024) Without Project conditions are shown on Exhibit
6-1.
6.3 OPENING YEAR CUMULATIVE (2024) WITH PROJECT TRAFFIC VOLUME FORECASTS
This scenario includes Existing traffic volumes, an ambient growth factor of 6.12%, traffic from
pending and approved but not yet constructed known development projects in the area and the
addition of Project traffic. The ADT and peak hour intersection turning movement volumes which
can be expected for Opening Year Cumulative (2024) With Project traffic conditions are shown
on Exhibit 6-2.
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14283-04 TA Report REV 54
EXHIBIT 6-1: OPENING YEAR CUMULATIVE (2024) WITHOUT PROJECT TRAFFIC VOLUMES
North Fontana Industrial Complex (Acacia) Traffic Study
14283-04 TA Report REV 55
EXHIBIT 6-2: OPENING YEAR CUMULATIVE (2024) WITH PROJECT TRAFFIC VOLUMES
North Fontana Industrial Complex (Acacia) Traffic Study
14283-04 TA Report REV 56
6.4 INTERSECTION OPERATIONS ANALYSIS
6.4.1 OPENING YEAR CUMULATIVE (2024) WITHOUT PROJECT TRAFFIC CONDITIONS
Opening Year Cumulative (2024) peak hour traffic operations have been evaluated for the study
area intersections based on the analysis methodologies presented in Section 2.2 Intersection
Capacity Analysis of this report. The intersection analysis results are summarized in Table 6-1,
which indicate that the following study area intersections are anticipated to operate at an
unacceptable LOS during the peak hours under Opening Year Cumulative (2024) Without Project:
• Sierra Avenue & I-15 SB Ramps (#1) – LOS F AM peak hour only
• Sierra Avenue & Riverside Avenue (#3) – LOS F AM and PM peak hours
The intersection operations analysis worksheets for Opening Year Cumulative Without Project
traffic conditions are included in Appendix 6.1 of this TA.
6.4.2 OPENING YEAR CUMULATIVE (2024) WITH PROJECT TRAFFIC CONDITIONS
As shown in Table 6-1, the following additional study area intersection is anticipated to operate
at an unacceptable LOS with the addition of Project traffic, in addition to the intersections
previously identified under Opening Year Cumulative (2024) Without Project traffic conditions:
• Sierra Avenue & I-15 SB Ramps (#1) – LOS F AM peak hour; LOS E PM peak hour
The intersection operations analysis worksheets for Opening Year Cumulative (2024) With
Project traffic conditions are included in Appendix 6.2 of this TA.
TABLE 6-1: INTERSECTION ANALYSIS FOR OPENING YEAR CUMULATIVE (2024) CONDITIONS
#AM PM AM PM AM PM AM PM
1 141.6 49.7 F D 149.4 57.8 F E
2 TS 12.0 53.2 B D 12.0 54.9 B D
3 AWS >200.0 >200.0 F F >200.0 >200.0 F F
4 TS 14.5 6.1 B A 14.8 6.1 B A
5 CSS 23.7 20.7 C C 24.9 22.4 C C
6 CSS 16.0 28.5 C D
7 CSS 15.9 26.2 C C
8 CSS 8.8 8.8 A A
BOLD = LOS does not meet the applicable jurisdictional requirements (i.e., unacceptable LOS).
1
2 CSS = Cross-street Stop; TS = Traffic Signal; AWS = All Way Stop
3 LOS = Level of Service
Sierra Av. & Duncan Canyon Rd.
Sierra Av. & Riverside Av.
Per the Highway Capacity Manual (6th Edition), overall average intersection delay and level of
service are shown for intersections with a traffic signal or all-way stop control. For intersections
with cross street stop control, the delay and level of service for the worst individual movement (or
Sierra Av. & Driveway 1
OYC (2024) WP
Delay1 (Secs.)LOS3
TS
Sierra Av. & Driveway 2
Driveway 3 & Duncan Canyon Rd.
Sierra Av. & Terra Vista Dr.
Future Intersection
Future Intersection
Future Intersection
Sierra Av. & I-15 SB Ramps
Sierra Av. & I-15 NB Ramps
Traffic
Control2
OYC (2024) NP
Delay1 (Secs.)LOS3
Intersection
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6.5 TRAFFIC SIGNAL WARRANTS ANALYSIS
Traffic signal warrants have been performed (based on CA MUTCD) for Opening Year Cumulative
(2024) traffic conditions based on peak hour intersection turning movements volumes or
planning level (ADT) volumes. The following unsignalized study area intersections is anticipated
to meet a traffic signal warrant under Opening Year Cumulative (2024) Without Project traffic
conditions, in addition to the intersection identified previously under Existing (2021) (see
Appendix 6.3):
• Sierra Avenue & Duncan Canyon Road (#5)
No additional study area intersections are anticipated to meet a warrant under Opening Year
Cumulative (2024) With Project traffic conditions (see Appendix 6.4).
6.6 ROADWAY SEGMENT CAPACITY ANALYSIS
The City of Fontana General Plan provides roadway volume capacity values and are approximate
figures only and are used at the General Plan level to assist in determining the roadway functional
classification (number of through lanes) needed to meet traffic demand. Table 6-2 provides a
summary of the Opening Year Cumulative (2024) traffic conditions roadway segment capacity
analysis.
TABLE 6-2: ROADWAY SEGMENT CAPACITY ANALYSIS FOR OPENING YEAR CUMULATIVE (2024)
CONDITIONS
As shown in Table 6-2, the following study area roadway segments is anticipated to operate at
an unacceptable LOS based on the City’s planning level daily roadway capacity thresholds for
Opening Year Cumulative (2024) Without Project and With Project traffic conditions:
• Sierra Avenue, Terra Vista Drive to Riverside Avenue (#1) – LOS F
It should be noted, the roadway segments identified above are anticipated to improve operations
to acceptable LOS with the implementation of the Project design features discussed in Section
1.6 Recommendations.
Roadway LOS
#Roadway Section Capacity1 V/C2 LOS3 V/C2 LOS3
1 Sierra Av.2U 18,000 18,605 1.03 F 18,899 1.05 F
BOLD = LOS does not meet the applicable jurisdictional requirements (i.e., unacceptable LOS).
2 V/C = Volume to Capacity Ratio
3 LOS = Level of Service
Riverside Av. to Terra Vista Dr.
OYC (2024)
Without Project
1 Maximum roadway capacities are based on the Fontana Forward General Plan Update 2015-2035. The roadway capacity for a 2-lane Major Highway
has been interpolated from the 6-lane Major Highway capacity obtained from the General Plan update.
OYC (2024)
With ProjectSegment Limits
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14283-04 TA Report REV 58
6.7 OFF-RAMP QUEUING ANALYSIS
Queuing analysis findings for Opening Year Cumulative (2024) are presented in Table 6-3. As
shown in Table 6-3, there are no movements that are anticipated to experience queuing issues
during the weekday AM or weekday PM peak 95th percentile traffic flows under Opening Year
Cumulative (2024) Without Project and With Project traffic conditions. Worksheets for Opening
Year Cumulative (2024) Without Project and With Project traffic conditions off-ramp queuing
analyses are provided Appendices 6.5 and 6.6, respectively.
TABLE 6-3: PEAK HOUR FREEWAY OFF-RAMP QUEUING SUMMARY FOR OPENING YEAR CUMULATIVE
(2024) CONDITIONS
6.8 DEFICIENCIES AND IMPROVEMENTS
This section provides a summary of deficiencies, based on the City of Fontana’s deficiency criteria
discussed in Section 2.7 Deficiency Criteria, and improvements needed to improve operations
back to acceptable levels.
6.8.1 IMPROVEMENTS TO ADDRESS DEFICIENCIES AT INTERSECTIONS
The effectiveness of the recommended improvement strategies to address Opening Year
Cumulative (2024) traffic deficiencies are presented in Table 6-4. Worksheets for Opening Year
Cumulative (2024) Without and With Project conditions, with improvements, HCM calculation
worksheets are provided in Appendices 6.7 and 6.8, respectively.
AM PM AM PM
Sierra Av. & I-15 SB Ramps WBL 190 258 2,3 264 2,3 Yes Yes 264 2,3 269 2,3 Yes Yes
WBL/T 1,125 261 2 268 2 Yes Yes 265 2 272 2 Yes Yes
WBR 190 44 58 Yes Yes 44 58 Yes Yes
Sierra Av. & I-15 NB Ramps EBL 365 177 2 474 2,3 Yes Yes 177 2 486 2,3 Yes Yes
EBT 1,410 180 2 515 2 Yes Yes 180 2 527 2 Yes Yes
EBR 365 89 250
2 Yes Yes 89 258
2 Yes Yes
2 95th percentile volume exceeds capacity, queue may be longer. Queue shown is maximum after two cycles.2 Maximum queue length for the approach reported.
1 Stacking Distance is acceptable if the required stacking distance is less than or equal to the stacking distance provided. An additional 15 feet of stacking which is assumed to be provided in the transition
for turn pockets is reflected in the stacking distance shown on this table, where applicable.
3 Although 95th percentile queue is anticipated to exceed the available storage for the turn lane, the adjacent through lane has sufficient storage to accommodate any spillover without spilling back and
affecting the I-15 Freeway mainline.
AM Peak PM Peak
OYC (2024) Without Project OYC (2024) With Project
95th Percentile Queue (Feet)Acceptable? 1 95th Percentile Queue (Feet)Acceptable? 1
Intersection Movement
Available Stacking
Distance (Feet)AM Peak PM Peak
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TABLE 6-4: INTERSECTION ANALYSIS FOR OPENING YEAR CUMULATIVE (2024) CONDITIONS WITH
IMPROVEMENTS
6.8.2 IMPROVEMENTS TO ADDRESS DEFICIENCIES ON ROADWAY SEGMENTS
Where the ADT based roadway segment analysis indicates a deficiency (unacceptable LOS), the
more detailed peak hour intersection analysis has also been reviewed. The more detailed peak
hour intersection analysis explicitly accounts for factors that affect roadway capacity. For the
purposes of this analysis, if the peak hour intersection operations on either side of the roadway
segment are anticipated to operate at an acceptable LOS, then additional roadway segment
widening has not been recommended. Therefore, based on the analysis shown in Table 6-4,
roadway segment widening has not been recommended since the peak hour intersection analysis
does not indicate the need for additional through lanes. However, if the segment of Sierra
Avenue were to be widened to with an additional northbound through lane south of Riverside
Avenue to the southerly tract (for a total of 2 through lanes northbound and one lane
southbound), the roadway segment would operate at an acceptable capacity (see Table 6-5).
TABLE 6-5: ROADWAY SEGMENT CAPACITY ANALYSIS FOR OPENING YEAR CUMULATIVE (2024)
CONDITIONS WITH IMPROVEMENTS
Delay2 Level of
Traffic Northbound Southbound Eastbound Westbound (secs.)Service
#Intersection Control3 L T R L T R L T R L T R AM PM AM PM
1 Sierra Av. & I-15 SB Ramps4
- Without Project TS 2 2 0 0 2 1 0 0 0 1 1 1 27.2 19.9 C B
- With Project TS 2 2 0 0 2 1 0 0 0 1 1 1 27.8 20.1 C C
3 Sierra Av. & Riverside Av.
- Without Project TS 0 2 0 1 2 0 0 0 0 1 0 1 41.0 47.9 D D
- With Project TS 0 2 0 1 2 0 0 0 0 1 0 1 44.6 49.8 D D
*BOLD = Level of Service (LOS) does not meet the applicable jurisdictional requirements (i.e., unacceptable LOS).
1 When a right turn is designated, the lane can either be striped or unstriped. To function as a right turn lane there must be sufficient width for right
turning vehicles to travel outside the through lanes.
2 Per the Highway Capacity Manual (6th Edition), overall average intersection delay and level of service are shown for intersections with a traffic
signal or all way stop control. For intersections with cross street stop control, the delay and level of service for the worst individual movement (or
movements sharing a single lane) are shown.
3 AWS = All Way Stop; TS = Traffic Signal; TS = Improvement
4 Improvement includes widening of the I-215 SB ramp to provide pavement for an additional receiving lane.
Intersection Approach Lanes1
L = Left; T = Through; R = Right; > = Right-Turn Overlap Phasing; >> = Free Right Turn Lane; 1 = Improvement
Roadway LOS
#Roadway Section Capacity1 V/C2 LOS3 V/C2 LOS3
1 Sierra Av.3D 27,000 18,605 0.69 B 18,899 0.70 B
3U = Improvement
2 V/C = Volume to Capacity Ratio
3 LOS = Level of Service
1 Maximum roadway capacities are based on the Fontana Forward General Plan Update 2015-2035. The roadway capacity for a 3-lane Major Highway
has been interpolated from the 6-lane Major Highway capacity obtained from the General Plan update.
Segment Limits
Riverside Av. to Terra Vista Dr.
OYC (2024)
Without Project
OYC (2024)
With Project
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6.8.3 IMPROVEMENTS TO ADDRESS DEFICIENCIES ON OFF-RAMP QUEUES
As shown previously in Table 6-3, there are no movements that are anticipated to experience
queuing issues during the weekday AM or weekday PM peak 95th percentile traffic flows for
Opening Year Cumulative (2024) traffic conditions. As such, no improvements have been
identified.
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7 LOCAL AND REGIONAL FUNDING MECHANISMS
Transportation improvements within the City of Fontana are funded through a combination of
direct project mitigation, development impact fee programs or fair share contributions, such as
the City of Fontana DIF program. Identification and timing of needed improvements is generally
determined through local jurisdictions based upon a variety of factors.
7.1 MEASURE “I” FUNDS
In 2004, the voters of San Bernardino County approved the 30-year extension of Measure “I”, a
one-half of one percent sales tax on retail transactions, through the year 2040, for transportation
projects including, but not limited to, infrastructure improvements, commuter rail, public transit,
and other identified improvements. The Measure “I” extension requires that a regional traffic
impact fee be created to ensure development is paying its fair share. A regional Nexus study was
prepared by SBCTA and concluded that each jurisdiction should include a regional fee component
in their local programs in order to meet the Measure “I” requirement. The regional component
assigns specific facilities and cost sharing formulas to each jurisdiction and was most recently
updated in May 2018. Revenues collected through these programs are used in tandem with
Measure “I” funds to deliver projects identified in the Nexus Study.
While Measure “I” is a self-executing sales tax administered by SBCTA, it bears discussion here
because the funds raised through Measure “I” have funded in the past and will continue to fund
new transportation facilities in San Bernardino County, including within the City of Fontana.
7.2 CITY OF FONTANA DEVELOPMENT IMPACT FEE (DIF)
The City of Fontana adopted the latest update to their DIF program in September 2019. Fees
from new residential, commercial, and industrial development are collected to fund Measure “I”
compliant regional facilities as well as local facilities. Under the City’s DIF program, the City may
grant to developers a credit against specific components of fees when those developers construct
certain facilities and landscaped medians identified in the list of improvements funded by the DIF
program.
After the City’s DIF fees are collected, they are placed in a separate restricted use account
pursuant to the requirements of Government Code sections 66000 et seq. The timing to use the
DIF fees is established through periodic capital improvement programs which are overseen by
the City’s Engineering Department. Periodic traffic counts, review of traffic accidents, and a
review of traffic trends throughout the City are also periodically performed by City staff and
consultants. The City uses this data to determine the timing of the improvements listed in its
facilities list. The City also uses this data to ensure that the improvements listed on the facilities
list are constructed before the LOS falls below the LOS performance standards adopted by the
City. In this way, the improvements are constructed before the LOS falls below the City’s LOS
performance thresholds. The City’s DIF program establishes a timeline to fund, design, and build
the improvements.
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7.3 FAIR SHARE CONTRIBUTION
Project improvements may include a combination of fee payments to established programs,
construction of specific improvements, payment of a fair share contribution toward future
improvements or a combination of these approaches. Improvements constructed by
development may be eligible for a fee credit or reimbursement through the program where
appropriate (to be determined at the City’s discretion). When off-site improvements are
identified with a minor share of responsibility assigned to proposed development, the approving
jurisdiction may elect to collect a fair share contribution or require the development to construct
improvements. Detailed fair share calculations, for each peak hour, have been provided in Table
7-1 for the applicable deficient study area intersection and for each applicable phase. These fees
are collected with the proceeds solely used as part of a funding mechanism aimed at ensuring
that regional highways and arterial expansions keep pace with the projected population
increases.
TABLE 7-1: PROJECT FAIR SHARE CALCULATIONS
#Intersection Existing
(2021)Project OYC (2024)
With Project
Net New
Traffic
Project % of
New Traffic
1 Sierra Av. & I-15 SB Ramps
AM:2,711 16 3,245 534 3.0%
PM:2,913 23 3,525 612 3.8%
2 Sierra Av. & I-15 NB Ramps
AM:2,368 21 2,733 365 5.8%
PM:3,221 31 3,897 676 4.6%
3 Sierra Av. & Riverside Av.
AM:2,088 24 2,728 640 3.8%
PM:2,350 34 3,017 667 5.1%
BOLD = Denotes highest fair share percentage.
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8 VEHICLE MILES TRAVELED
Changes to California Environmental Quality Act (CEQA) Guidelines were adopted in December
2018, which require all lead agencies to adopt VMT as a replacement for automobile delay-based
level of service (LOS) as the measure for identifying transportation impacts for land use projects.
This statewide mandate went into effect July 1, 2020. To aid in this transition, the Governor’s
Office of Planning and Research (OPR) released a Technical Advisory on Evaluating Transportation
Impacts in CEQA (December of 2018) (Technical Advisory). (2) Based on OPR’s Technical Advisory
specific procedures for complying with the new CEQA requirements for VMT analysis the City of
Fontana adopted Traffic Impact Analysis Guidelines for Vehicle Miles Traveled and Level of
Service Assessment (City Guidelines), which documents the City’s VMT analysis methodology and
approved impact thresholds. (1) The VMT screening evaluation presented in this report has been
developed based on the adopted City Guidelines.
8.1 PROJECT SCREENING
The City Guidelines describe specific “screening thresholds” that can be used to identify when a
proposed land use project is anticipated to result in a less than significant impact without
conducting a more detailed project level VMT analysis. For the purposes of this analysis, the initial
VMT screening process has been conducted with the SBCTA VMT Screening Tool (Screening
Tool), which uses screening criteria consistent with the screening thresholds recommended in
the City Guidelines. Screening thresholds are described in the following four steps:
• Step 1: Transit Priority Area (TPA) Screening
• Step 2: Low VMT Area Screening
• Step 3: Low Project Type Screening
• Step 4: Project net daily trips less than 500 ADT
Consistent with City Guidelines a land use project needs only to satisfy one of the above screening
thresholds to result in a less than significant impact.
8.1.1 STEP 1: TPA SCREENING
Consistent with guidance identified in the City Guidelines, projects located within a Transit
Priority Area (TPA) (i.e., within ½ mile of an existing “major transit stop”1 or an existing stop along
a “high-quality transit corridor”2) may be presumed to have a less than significant impact absent
substantial evidence to the contrary. However, the presumption may not be appropriate if a
project:
1 Pub. Resources Code, § 21064.3 (“‘Major transit stop’ means a site containing an existing rail transit station, a
ferry terminal served by either a bus or rail transit service, or the intersection of two or more major bus routes
with a frequency of service interval of 15 minutes or less during the morning and afternoon peak commute
periods.”).
2 Pub. Resources Code, § 21155 (“For purposes of this section, a high-quality transit corridor means a corridor with
fixed route bus service with service intervals no longer than 15 minutes during peak commute hours.”).
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• Has a Floor Area Ratio (FAR) of less than 0.75;
• Includes more parking for use by residents, customers, or employees of the project than required
by the jurisdiction (if the jurisdiction requires the project to supply parking);
• Is inconsistent with the applicable Sustainable Communities Strategy (as determined by the lead
agency, with input from the Metropolitan Planning Organization); or
• Replaces affordable residential units with a smaller number of moderate- or high-income
residential units.
Based on the Screening Tool results presented in Appendix 8.1, the Project site is not located
within ½ mile of an existing major transit stop, or along a high-quality transit corridor.
TPA screening criteria is not met.
8.1.2 STEP 2: LOW VMT AREA SCREENING
As noted in the City Guidelines, “Residential and office projects located within a low VMT-
generating area may be presumed to have a less than significant impact absent substantial
evidence to the contrary. In addition, other employment-related and mixed-use land use projects
may qualify for the use of screening if the project can reasonably be expected to generate VMT
per resident, per worker, or per service population that is similar to the existing land uses in the
low VMT area.” 3 The Screening Tool uses the sub-regional San Bernardino County Transportation
Analysis Model (SBTAM) to measure VMT performance within San Bernardino County for
individual traffic analysis zones (TAZ’s) within each city. The Project’s physical location based on
APN is input into the Screening Tool to determine the VMT generated within the respective TAZ
as compared to the jurisdictional average inclusive of a particular threshold (i.e., 15% below
baseline County of San Bernardino VMT per employee). Based on the Screening Tool results, the
Project is not located within a low VMT generating zone as compared to the City’s adopted
threshold of 15% below baseline County of San Bernardino VMT per employee. (See Appendix
8.1).
Low VMT Area screening criteria is not met.
8.1.3 STEP 3: LOW PROJECT TYPE SCREENING
The City Guidelines identify that local serving retail with buildings less than 50,000 square feet or
other local serving essential services (e.g., day care centers, public schools, medical/dental office
buildings, etc.) are presumed to have a less than significant impact absent substantial evidence
to the contrary. The proposed Project is not considered a local serving use based on the examples
provided in the City Guidelines.4
Low Project Type screening criteria is not met.
3 City Guidelines; Page 12.
4 City Guidelines; Page 13.
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8.1.4 STEP 4: PROJECT NET DAILY TRIPS LESS THAN 500 ADT SCREENING
Projects that generate fewer than 500 net average daily trips (ADT) (stated in actual vehicles) are
deemed to not cause a substantial increase in the total citywide or regional VMT and are
therefore presumed to have a less than significant impact on VMT. Substantial evidence in
support of this daily trip threshold is documented in the City Guidelines.5 The trip generation
rates used for this analysis are based on the trip generation statistics published in the Institute of
Transportation Engineer (ITE) Trip Generation Manual (11th Edition, 2021). (3) The proposed
Project is estimated to generate 704 vehicle trip-ends per day, which would exceed the City’s
screening threshold of 500 ADT.
Project net daily trips less than 500 ADT screening criteria is not met.
As none of the aforementioned VMT screening criteria are met a project-level VMT analysis has
been prepared.
8.2 VMT METHODOLOGY
The Project was not found to be located within a TPA, low VMT area, or meet either of the project
type screening thresholds and would therefore require a full VMT analysis. The City has identified
following recommended threshold(s):
• The baseline project generated VMT per service population exceeds 15% below the
baseline County of San Bernardino VMT per service population, or
• The cumulative project generated VMT per service population exceeds 15% below the
baseline County of San Bernardino VMT per service population.
8.3 VMT ANALYSIS
The calculation of VMT for land use projects is based on the total number of trips generated and
the average trip length of each vehicle. The San Bernardino Transportation Analysis Model
(SBTAM) is a useful tool to estimate VMT as it considers interaction between different land uses
based on socio-economic data such as population, households, and employment. The City
Guidelines identifies SBTAM as the appropriate tool for conducting VMT analysis for land use
projects in the City of Fontana. Therefore, the vehicle trips and average daily trip length for
project-related vehicle trips are model derived from SBTAM.
Project VMT has been calculated using the most current version of SBTAM. Adjustments in socio-
economic data (SED) (i.e., employment) have been made to the appropriate traffic analysis zone
(TAZ) within the SBTAM model to reflect the Project’s proposed land uses (i.e., warehouse). Table
1 summarizes the employment estimates for the Project. It should be noted that the employment
estimates are consistent with the employment density factors identified in the Southern
California Association of Governments (SCAG) Employment Density Study (October 2001). (8)
5 City Guidelines; Appendix B.
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TABLE 8-1: EMPLOYMENT ESTIMATES
Land Use Quantity (SF) Employment Density Factor6 Estimated
Employees
Warehouse 296,297 1 employee per 1,195 SF 248
Adjustments to employment were added to the Project’s TAZ 53740301 for both the SBTAM base
year (2016) and cumulative year (2040) traffic models. Project generated VMT was calculated
from the model’s Production-Attraction (PA) matrices. As noted in the City Guidelines and
through consultation with City Staff, it was deemed appropriate for an employment generating
single land use project to use the PA matrices to derive the home-based-work (HBW) VMT per
employee. The base year and cumulative year results were then interpolated for the baseline
(2021) conditions. The total VMT is then normalized by dividing by the Project’s employees. As
shown in Table 2, the Project Baseline VMT per employee is 19.69 and Project Cumulative VMT
per employee is 16.48.
TABLE 8-2: PROJECT VMT PER EMPLOYEE
Base Year
(2016)
Cumulative Year
(2040)
Baseline
(2021)
Employment 248 248 248
VMT 5,091 4,087 4,882
VMT / Employee 20.53 16.48 19.69
8.3.1 IMPACT ASSESSMENT
SBCTA provides VMT calculations for each of its member agencies and for the baseline County of
San Bernardino region. Urban Crossroads has obtained this published data from SBCTA, which
for the County of San Bernardino is 17.1 VMT per employee. As outlined in the City Guidelines, a
threshold of 15 percent below the regional baseline is 14.54 VMT per employee.
Table 3 illustrates the comparison between Project generated VMT per employee to the Baseline
regional (San Bernardino County) VMT per employee. As shown, the Project would exceed the
threshold of 15 percent below the baseline County of San Bernardino VMT per employee for both
in the baseline or cumulative Project conditions. The Project VMT impact is therefore considered
potentially significant.
TABLE 8-3: PROJECT VMT PER EMPLOYEE COMPARISON
Baseline Cumulative
Impact Threshold 14.54 14.54
Project 19.69 16.48
Percent Change +35.42% +13.34%
Potentially Significant? Yes Yes
6 Table II-B of the SCAG Employment Density Study.
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8.3.2 CUMULATIVE ASSESSMENT
The Technical Advisory notes that “… metrics such as VMT per capita or VMT per employee, i.e.,
metrics framed in terms of efficiency (as recommended below for use on residential and office
projects), cannot be summed because they employ a denominator. A project that falls below an
efficiency-based threshold that is aligned with long-term goals and relevant plans has no
cumulative impact distinct from the project impact. Accordingly, a finding of a less-than-
significant project impact would imply a less than significant cumulative impact, and vice versa.
This is similar to the analysis typically conducted for greenhouse gas emissions, air quality
impacts, and impact that utilize plan compliance as a threshold of significance.” Since the Project
was found to have a potentially significant impact at the project level, it is considered to have a
potentially significant cumulative impact as well.
8.3.3 VMT REDUCTION STRATEGIES
Transportation Demand Management (TDM) strategies in the form of commute trip reduction
program measures have been reviewed for the purpose of reducing Project related VMT impacts
(i.e., commute trips) determined to be potentially significant. The level of effectiveness of each
trip reduction measure has been determined based on the Handbook for Analyzing Greenhouse
Gas Emission Reductions, Assessing Climate Vulnerabilities, and Advancing Health and Equity
(CAPCOA, 2021) (2021 Handbook). As the future building tenants are not known for the Project,
the effectiveness of each commute trip reduction measures may be limited. In addition to specific
tenancy considerations, locational context is also a major factor relevant to the potential
application and effectiveness of TDM measures. The three locational contexts identified by the
2021 Handbook are suburban, urban, and rural.7 The locational context of the Project is
characteristically suburban.
Under the most favorable circumstances and ideal conditions a project can realize a maximum
reduction of 45% in commute VMT through implementation of the trip reduction program
measures listed below.8 The proposed Project would require a minimum reduction of 35.42% to
achieve a less than significant impact. The 2021 Handbook lists the following trip reduction
measures. These measures can be implemented individually or grouped together to create either
a voluntary or mandatory commute trip reduction (CTR) program.
• T-6 – Implement Commute Trip Reduction Marketing (up to 4.0% reduction)
• T-7 – Provide Ridesharing Program (up to 8% reduction)
• T-8 – Implement Subsidized or Discounted Transit Program (up to 5.5% reduction)
• T-9 – Provide End-of-Trip Facilities (up to 4.4% reduction)
• T-10 – Provide Employer-Sponsored Vanpool (up to 20.4% reduction)
• T-11 – Price Workplace Parking (up to 20.0% reduction)
• T-12 – Implement Employee Parking Cash-Out (up to 12.0% reduction)
7 2021 Handbook; Page 43
8 2021 Handbook; Page 61
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Other regional transportation measures that may reduce VMT include but are not limited to
improving/increasing access to transit, increasing access to common goods and service, or
orientating land uses towards alternative transportation. These regional transportation
measures may be infeasible at the project level but will generally be implemented as the
surrounding communities develop. There is no means, however, to quantify any VMT reductions
that could result. Additionally, the effectiveness of the CTR program measures listed above have
potential to reduce the Project VMT are dependent on as yet unknown building tenant(s); and as
noted above, VMT reductions from various CTR measures cannot be guaranteed.
.
Based on the results of this analysis the following findings are made:
• The Project was evaluated against screening criteria as outlined in the City Guidelines.
The Project was not found to meet any available screening criteria, and a model based
VMT analysis was performed.
• The Project’s VMT analysis found the Project to exceed the City’s VMT per employee
threshold by 35.42% in baseline conditions and 13.34% in cumulative conditions. The Project is
determined to have a potentially significant transportation impact.
• Since the future tenants are unknown at this time, implementation of the feasible TDM
measures discussed above cannot be guaranteed to reduce the Project generated VMT
per employee; the Project’s VMT impact is considered significant and unavoidable.
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9 REFERENCES
1. City of Fontana Public Works Department. Traffic Impact Analysis (TIA) Guidelines for Vehicle Miles
Traveled (VMT) and Level of Service Assessment. Fontana : s.n., October 21, 2020.
2. Office of Planning and Research. Technical Advisory on Evaluating Transportation Impacts in CEQA.
State of California : s.n., December 2018.
3. Institute of Transportation Engineers. Trip Generation Manual. 11th Edition. 2021.
4. Transportation Research Board. Highway Capacity Manual (HCM). 6th Edition. s.l. : National Academy
of Sciences, 2016.
5. California Department of Transportation. Guide for the Preparation of Traffic Impact Studies.
December 2002.
6. —. California Manual on Uniform Traffic Control Devices (MUTCD). [book auth.] California Department
of Transportation. California Manual on Uniform Traffic Control Devices (CAMUTCD). 2017.
7. City of Fontana. Fontana Forward General Plan Update 2015-2035. Fontana : City of Fontana, 2018.
8. Southern California Association of Governments. Employment Density Study. October 2001.
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