HomeMy WebLinkAboutAppdx H-2_Traffic Access Memo transportation ■ noise ■ air quality | GANDDINI GROUP
555 Parkcenter Drive, Suite 225, Santa Ana, CA 92705
(714) 795-3100 | ganddini.com
December 22, 2023
Mr. Bob Prasse, Director of Environmental Services
MIG, INC.
1650 Spruce Street, Suite 106
Riverside, California 92507
RE: Citrus Avenue Warehouse Project Site Access Memorandum
Project No.: 19530
Dear Mr. Prasse:
Ganddini Group, Inc. is pleased to provide this Site Access Memorandum for the proposed Citrus Avenue
Warehouse Project. We trust the findings of this analysis will aid you and the City of Fontana in assessing the
project.
PROJECT DESCRIPTION
The net 15.84-acre project site is located north of Slover Avenue, south of Boyle Avenue, east of Citrus
Avenue, and west of Oleander Avenue (APNs: 0251-151-03, -04, 07, -09, -10, -14, -15, -16, -19, -21, -22, -
39, -40, -42, -43, and -44) in the City of Fontana, California. The project site is currently occupied by fifteen
single-family detached residential dwelling units. Figure 1 shows the project location map.
The proposed project involves construction of a 355,995 square foot high-cube transload and short-term
storage warehouse within the Light Industrial (M-1) and Community Commercial (C-1) Zoning Districts.
Vehicular access is proposed at Slover Avenue via three project driveways and at Boyle Avenue via two project
driveways. Figure 2 illustrates the project site plan for Option 1 – South Facing Truck Docks.
PROJECT TRIP GENERATION
Table 1 shows the existing land uses trip generation for residential land uses and Table 2 shows the project
trip generation for the proposed warehousing use based upon trip generation rates obtained from the Institute
of Transportation Engineers (ITE) Trip Generation Manual (11th Edition, 2021). Based on review of the ITE land
use descriptions, trip generation rates for Single-Family Detached Residential (ITE Land Use Code 210) and
High-Cube Transload and Short-Term Storage Warehouse (ITE Land Use Code 154) were determined to
adequately represent the existing/proposed uses and were selected for this analysis. The existing and project
trip generation forecasts were determined by multiplying the trip generation rates by the land use quantities.
A few of the existing residential land uses currently appear to operate commercial businesses (automobile
repair, storage yard, nursery). All residential lots were analyzed as single-family detached residential to provide
for a conservative assessment of the net project trip generation and to correspond with the intended and
constructed land uses.
Mr. Bob Prasse, Director of Environmental Services
MIG, INC.
December 22, 2023
Citrus Avenue Warehouse Project Site Access Memorandum
2 19530
Existing
As shown in Table 1, the existing land uses are forecast to generate approximately 142 daily vehicle trips,
including 11 vehicle trips during the AM peak hour and 14 vehicle trips during the PM peak hour.
Proposed Project
As shown in Table 2, the proposed project is forecast to generate approximately 498 daily vehicle trips,
including 29 vehicle trips during the AM peak hour and 34 vehicle trips during the PM peak hour.
Truck Trips
In accordance with industry practice and City requirements for truck-oriented uses, the project trip generation
was also calculated in terms of Passenger Car Equivalent (PCE) trips. The percentage of truck trips was
obtained from the ITE Trip Generation Manual (11th Edition, 2021). The breakdown of truck mix by axle type
was obtained from the City of Fontana Truck Trip Generation Study (August 2003). Finally, truck trips were
converted to PCE trips based on the following factors recommended by the City of Fontana Traffic Impact
Analysis Guidelines for Vehicle Miles Traveled and Level of Service Assessment (October 2020): 2.0 for 2-axle
trucks, 2.5 for 3-axle trucks, and 3.0 for trucks with four or more axles.
As also shown in Table 1, the proposed project is forecast to generate approximately 633 daily PCE trips,
including 43 PCE trips during the AM peak hour and 38 PCE trips during the PM peak hour.
Trip Generation Comparison
Table 3 shows a trip generation comparison between the existing and proposed uses. As shown in Table 3,
the proposed project is forecast to result in a net increase of approximately 356 additional daily vehicle trips,
including 18 additional vehicle trips during the AM peak hour and 20 additional vehicle trips during the PM
peak hour comparative to the existing land uses.
PROJECT TRIP DISTRIBUTION AND ASSIGNMENT
The project west driveway on Boyle Avenue is proposed to be full access for trucks and automobiles and the
project east driveway on Boyle Avenue is proposed to be full access automobile only. The project west
driveway on Slover Avenue is proposed to provide right in/right out only access for trucks only. The project
central driveway on Slover Avenue is proposed to provide right turn in/out and left turn in only access for
trucks only. The project east driveway on Slover Avenue is proposed to provide right in/out only access for
cars, with trucks only using this access if absolutely necessary.
Figures 3 to 6 show the forecast directional distribution patterns for the project generated trips for both
automobiles and trucks. The project trip distribution patterns are based on review of existing volume data,
surrounding land uses, City of Fontana truck routes, and the local and regional roadway facilities in the project
vicinity.
Figure 7 and Figure 8 show the project-generated AM and PM peak hour intersection turning movement
volumes at the proposed project driveways based on the trip generation shown in Table 2 and trip distribution
patterns shown on Figures 3 to 6. The former use of the property consisted of 15 residences and the traffic
generated by this former use was not used in developing the project-generated AM and PM peak hour
intersection turning movement volumes.
Mr. Bob Prasse, Director of Environmental Services
MIG, INC.
December 22, 2023
Citrus Avenue Warehouse Project
Site Access Memorandum
3 19530
GATE ACCESS STACKING ANALYSIS
Gate stacking at the proposed loading dock access gates was evaluated to ensure adequate storage lengths
are provided and vehicle queues do not overflow into the public right-of-way or obstruct on-site circulation.
The gate queueing analysis was performed based on procedures outlined in Transportation and Land
Development (Institute of Transportation Engineers, 1988). The methodology estimates the number of queued
vehicles at a service point based on a Poisson distribution for estimating the effect of surges and random
arrivals. Additional inputs include the demand rate, number of service lanes, service rate, and the desired
confidence interval. Service rate capacities were based on review of the Entrance-Exit Design and Control for
Major Parking Facilities (Crommelin, 1972) methodology; however, the lowest entering maximum hourly
capacity is 175 vehicles/hour for a coin operated gate. To provide for a conservative analysis, an entering
maximum hourly capacity of 60 vehicles/hour was used; this assumes a truck arrival would take up to one
minute for security check-in. A 95 percent confidence interval was used to determine the queue that is not
exceeded five times out of 100 intervals.
Table 4 summarizes the loading dock access gate queuing analysis for each driveway for a “worst-case”
scenario assuming 100% of trucks enter from each driveway on Slover Avenue; detailed worksheets are
provided in Attachment A. As shown in Table 4, the central loading dock gate entrances provide approximately
75 feet of storage length, which is sufficient to accommodate the forecast queue length of 75 feet
(approximately one truck) during the peak hours. The gate exits provide approximately a minimum of 75 feet
of storage length between the gate and internal drive aisles, which is sufficient to accommodate the forecast
queue length of 75 feet (approximately one truck) during the peak hours. The same is true for the westerly
and easterly loading dock access gates to/from Slover Avenue.
It should be noted that all three of these driveways on Slover Avenue will allow for inbound truck access, but
the project east driveway will only be used if absolutely necessary. The queuing analysis is performed in vehicle
trips assuming 75 feet of queue per vehicle to accommodate a 73.5-foot long WB-67 truck. Therefore, an
inbound truck will occupy all 75 feet of available storage length for the project driveways.
It is projected that the proposed development will have 4 inbound trucks during the AM peak hour and one
inbound truck during the PM peak hour. Thus, an inbound truck is expected every 15 minutes during the AM
peak hour. It is unlikely that there would be a truck attempting to enter the same driveway that a truck is
queuing at while the gate is opening, but in this unlikely event the second truck will need to queue either in
the eastbound left turn lane or in the westbound travel lane. A passenger car traveling behind an inbound
truck at the same project driveway would need to do the same. To prevent project trips from queuing along
Slover Avenue, though unlikely, it is recommended that the entrance gates at the project driveways remain
open during operating hours.
Figure 9 shows a stacking diagram for the loading dock access gates at the three project driveways on Slover
Avenue. As shown on Figure 9, one truck can queue at the west and central driveways perpendicular to Slover
Avenue prior to the entrance gate. The project east driveway allows for an additional truck to queue parallel
to Slover Avenue while a truck waits behind them. As shown on Figure 9, the drive aisles provide for sufficient
storage to accommodate exiting vehicle queues without obstructing entering vehicles or adversely impacting
on-site circulation.
Mr. Bob Prasse, Director of Environmental Services
MIG, INC.
December 22, 2023
Citrus Avenue Warehouse Project
Site Access Memorandum
4 19530
LEFT TURN STORAGE LENGTH ANALYSIS
A left turn pocket queuing analysis has been conducted at the project central driveway on Slover Avenue.
Table 5 summarizes results of the queuing analyses for left-turn movements conducted at the project central
driveway on Slover Avenue. The recommended storage length represents the storage length necessary to
accommodate the expected queue length based on a 95th-percentile design value. The queuing analysis
reports are based on the number of vehicles using the left turn lanes during the peak hours converted to PCE
trips.
Table 5 shows the AM and PM peak hour volumes for the proposed left turn lane at the Project Central
Driveway and the recommended storage length based on general traffic engineering/transportation planning
guidance of one foot of stacking length per peak hour volume.
Although the AM and PM peak hour volumes are relatively minimal (less than 25 vehicles per hour would
equate to less than 25 feet of queue length), the California Department of Transportation (Caltrans) Highway
Design Manual (HDM) recommends a minimum storage length for two (2) passenger cars at 25 feet per vehicle
(i.e., 50 feet total) at unsignalized left turn lanes. Since this driveway will be used exclusively by trucks, a
minimum storage length of 75 feet per vehicle is recommended to accommodate a 73.5-foot WB-67 truck.
Therefore, the recommended storage length necessary to accommodate a minimum of two trucks within the
proposed left turn lane at the Project Central Driveway is 150 feet. The proposed site plan (see Figure 2)
shows a raised median with an eastbound left turn lane that is approximately 300 feet and would provide
adequate storage capacity for the projected inbound left turn volume.
ACCESS MANAGEMENT REQUIREMENTS
The City of Fontana Access Management Standards (Standard Plan 1018) provides requirements related to
driveway spacing and median breaks. Slover Avenue adjacent to the project site is classified on the City of
Fontana Circulation Master Plan as a Primary Arterial. According to Standard Plan 1018, a Primary Arterial
requires driveway spacing of 330 feet and median breaks of 1,320 feet.
The distance between Citrus Avenue and the project west driveway is 531 feet and between the project east
driveway and Oleander Avenue is 252 feet. The distance between the project east boundary and Oleander
Avenue is less than the 330 feet requirement. However, the project east driveway is restricted to right turns
in/out only with a proposed raised median. With no median break, left turns in and out are prohibited. Thus,
the median break for left turn in at the project central driveway provides a more sensible metric to evaluate
driveway spacing. The distance between Citrus Avenue and the project central driveway is 936 feet and
between the project central driveway and Oleander Avenue is 599 feet. These are both more than the 330
feet requirement and meet the intent of the driveway spacing requirements.
However, the required distance between median breaks is 1,320 feet and the proposed median break from
the project central driveway west to Citrus Avenue and east to Oleander Avenue are both less than 1,320
feet. While this median break requirement is not met, the eastbound left turn lane at the project central
driveway will improve local circulation as trucks will make an eastbound left turn at the central project
driveway instead of proceeding eastbound through the intersection to Oleander Avenue, making an
eastbound left turn on Oleander Avenue heading northbound to Boyle Avenue, making a northbound left turn
onto Boyle Avenue and then a westbound left turn at the west project driveway on Boyle Avenue.
Mr. Bob Prasse, Director of Environmental Services
MIG, INC.
December 22, 2023
Citrus Avenue Warehouse Project
Site Access Memorandum
5 19530
As described, trucks will have quicker and more direct route to the project site with this median break at the
project central driveway on Slover Avenue allowing for right turns in/out and left turn in only access.
Additionally, Oleander Avenue and Boyle Avenue are bounded by residential land uses. The median break at
the project central driveway on Slover Avenue will minimize the number of inbound trucks that would
otherwise travel on Oleander Avenue and Boyle Avenue adjacent to these residential land uses. For these
reasons, it is recommended that the project central driveway on Slover Avenue is right turns in/out and left
turn in only access even though it does not meet the median break standard for Slover Avenue as stated in
Standard Plan 1018.
CONCLUSIONS
The loading dock gate entrances provide approximately 75 feet of storage length, which is sufficient to
accommodate the forecast queue length of 75 feet (approximately one truck) during the peak hours. To
prevent project trips from queuing along Slover Avenue, though unlikely, it is recommended that the entrance
gates at the project driveways remain open during operating hours.
The recommended storage length necessary to accommodate a minimum of two trucks within the proposed
left turn lane at the Project Central Driveway is 150 feet. The proposed site plan (see Figure 2) shows a raised
median with an eastbound left turn lane that is approximately 300 feet and would provide adequate storage
capacity for the projected inbound left turn volume.
It is recommended that the Project Central Driveway on Slover Avenue provide right turns in/out and left
turn in only access. Although the proposed restricted driveway would require a deviation from Standard Plan
1018, adequate left turn lane storage length can be provided to prevent queue overflow into adjacent through
lanes based on the results of the gate stacking and left turn lane queuing analysis. Additionally, the proposed
site access configuration would improve circulation in the project vicinity compared to right in/out only access
by providing direct access to the arterial roadway system and minimizing the need for truck circulation on
residential streets.
We appreciate the opportunity to assist you on this project. Should you have any questions or if we can be
of further assistance, please do not hesitate to call at (714) 795-3100 x 103.
Sincerely,
GANDDINI GROUP, INC.
Bryan Crawford | Senior Associate
Giancarlo Ganddini, PE, PTP | Principal
% In % Out Rate % In % Out Rate
Single-Family Detached Housing ITE 210 DU 26%74%0.70 63%37%0.94 9.43
In Out Total In Out Total
Single-Family Detached Housing 15 DU 3 8 11 9 5 14 142
Notes:
1) Source: ITE = Institute of Transportation Engineers Trip Generation Manual (11th Edition, 2021); ### = Land Use Code
2) DU = Dwelling Units
Trips Generated
Land Use Quantity Units2
AM Peak Hour PM Peak Hour
Daily
Table 1
Existing Trip Generation
Trip Generation Rates
Land Use Source1 Units2
AM Peak Hour PM Peak Hour Daily
Rate
Citrus Avenue Warehouse Project
Site Access Memorandum
19530-1
In Out Rate In Out Rate
All Vehicles ITE 154 77%23%0.080 28%72%0.100 1.400
Trucks Only ITE 154 49%51%0.020 47%53%0.010 0.220
Passenger Car (75.0% AM, 90.0% PM, 84.3% Daily)0.046 0.014 0.060 0.025 0.065 0.090 1.180
Truck (25.0% AM, 10.0% PM, 15.7% Daily)0.010 0.010 0.020 0.005 0.005 0.010 0.220
Truck Mix:SCAQMD
2-Axle Trucks (16.7%)0.002 0.002 0.004 0.001 0.001 0.002 0.037
3-Axle Trucks (20.7%)0.002 0.002 0.004 0.001 0.001 0.002 0.046
4+ Axle Trucks (62.6%)0.006 0.006 0.012 0.003 0.003 0.006 0.138
In Out Total In Out Total
Passenger Car 16 5 21 9 23 32 420
Trucks
2-Axle Trucks 1 1 2 0 0 0 13
3-Axle Trucks 1 1 2 0 0 0 16
4+ Axle Trucks 2 2 4 1 1 2 49
Subtotal 4 4 8 1 1 2 78
20 9 29 10 24 34 498
In Out Total In Out Total
Passenger Car 1.0 16 5 21 9 23 32 420
Trucks
2-Axle Trucks 2.0 2 2 4 0 0 0 26
3-Axle Trucks 2.5 3 3 6 0 0 0 40
4+ Axle Trucks 3.0 6 6 12 3 3 6 147
Subtotal 11 11 22 3 3 6 213
27 16 43 12 26 38 633
Notes:
Total PCE Trips Generated
(1) TSF = Thousand Square Feet
(2) ITE = Institute of Transportation Engineers Trip Generation Manual (11th Edition, 2021); ### = ITE Land Use Code.
SCAQMD = South Coast Air Quality Management District recommendations for non-cold storage high-cube warehouse.
(3) PCE = Passenger Car Equivalent
Total Vehicle Trips Generated
PCE3 TRIPS GENERATED
Vehicle Type PCE Factor4
AM Peak Hour PM Peak Hour
Daily
VEHICLE TRIPS GENERATED
Vehicle Type
AM Peak Hour PM Peak Hour
Daily
(4) Source: City of Fontana Traffic Impact Analysis Guidelines for Vehicle Miles Traveled and Level of Service Assessment (October 2020).
Table 2
Project Trip Generation
Land Use: High-Cube Transload & Short-Term Storage Warehouse
Size: 355.995 TSF
TRIP GENERATION RATES PER TSF1
Vehicle Type Source2
AM Peak Hour PM Peak Hour Daily
Rate
Citrus Avenue Warehouse Project
Site Access Memorandum
19530-1
In Out Total In Out Total
Project1 20 9 29 10 24 34 498
Existing Land Uses2 -3 -8 -11 -9 -5 -14 -142
Difference +17 +1 +18 +1 +19 +20 +356
Notes:
(2) See Table 1.
AM Peak Hour PM Peak Hour
Daily
Table 3
Project Trip Generation Comparison
Trips Generated
Land Use
(1) See Table 2.
Citrus Avenue Warehouse Project
Site Access Memorandum
19530-1
Demand
Flow
(veh/hr)
Service
Lanes
Service Rate
Capacity
(veh/hr/ln)
Utilization
Factor
Queue Length
(feet)
Storage
Length
(feet)
Adequate
Storage
Provided
Entering
Project West Driveway
1 1 60 0.02 25 75 YES
PM Peak Hour 1 1 60 0.02 25 75 YES
Project Central Driveway
4 1 60 0.07 25 75 YES
PM Peak Hour 1 1 60 0.02 25 75 YES
Project East Driveway
6 1 60 0.10 25 75 YES
PM Peak Hour 4 1 60 0.07 25 75 YES
Notes:
(1)
Table 4
Parking Gate Access Stacking Analysis
Gate / Peak Hour
AM Peak Hour
Based on Transportation and Land Development (Institute of Transportation Engineers, 1988) "Applications of Queuing
Analysis" methodology with service rate capacities from Entrance-Exit Design and Control for Major Parking Facilities
(Crommelin, 1972); see Attachment A.
AM Peak Hour
AM Peak Hour
Citrus Avenue Warehouse Project
Site Access Memorandum
19530-1
Minimum Recommended
Storage Storage
Turning Movement AM PM Length2,3 Length4
Project Central Driveway at Slover Avenue Eastbound Left Turn Lane 11 Vehicles 3 Vehicles 50 Feet 150 Feet
Notes:
(1) General traffic engineering / planning guidance recommends one (1) foot of stacking length for every vehicle per hour.Assumes 100% truck ingress.
(2) General traffic engineering / planning guidance recommends one (1) foot of stacking length for every vehicle per hour.
(3) Queue lengths rounded to nearest 25 feet; minimum queue length is 50 feet.
(4) Recommended storage length is increased to 150 feet to accommodate queuing for two trucks.
Table 5
Peak Hour Volume
(in Passenger Car Equivalents)1
Driveway
Left Turn Storage Length Analysis
Citrus Avenue Warehouse Project
Site Access Memorandum
19530-1
Figure 1
Project Location Map
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
10
Site
BOYLE AVE
OLEANDER AVE
SLOVER AVE
CITRUS AVE
Figure 2
Site Plan
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
Figure 3
Project Outbound Trip Distribution - Passenger Cars
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
Site
BOYLE AVE
OLEANDER AVE
SLOVER AVE
CITRUS AVE
Percent From Project
Legend
10%
40%
40%
15%
10%5%
30%
5%
15%25%
60%
65%
Figure 4
Project Inbound Trip Distribution - Passenger Cars
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
Site
BOYLE AVE
OLEANDER AVE
SLOVER AVE
CITRUS AVE
60%
50%
30%
15%
5%10%
40%
Percent To Project
Legend
10%
5%
5%
40%
45%15%
Figure 5
Project Outbound Trip Distribution - Trucks
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
Site
BOYLE AVE
OLEANDER AVE
SLOVER AVE
CITRUS AVE
Percent From Project
Legend
10%
90%
10%
10%
30%60%
Figure 6
Project Inbound Trip Distribution - Trucks
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
Site
BOYLE AVE
OLEANDER AVE
SLOVER AVE
CITRUS AVE
90%
10%
Percent To Project
Legend
10%
5% 95%
5%
Figure 7
Project AM Peak Hour Intersection Turning Movement Volumes
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
Site
BOYLE AVE
OLEANDER AVE
SLOVER AVE
CITRUS AVE
Study Intersection
Legend
#
3 4 5
21
3
Project West Dwy (NS)/
Slover Ave (EW)
7
18
71
4
Project Central Dwy (NS)/
Slover Ave (EW)
3
108
41
5
Project East Dwy (NS)/
Slover Ave (EW)
3
8
16
2
Project East Dwy (NS)/
Boyle Ave (EW)
12
72
1
Project West Dwy (NS)/
Boyle Ave (EW)
2
2
Figure 8
Project PM Peak Hour Intersection Turning Movement Volumes
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
Site
BOYLE AVE
OLEANDER AVE
SLOVER AVE
CITRUS AVE
Study Intersection
Legend
#
3 4 5
21
3
Project West Dwy (NS)/
Slover Ave (EW)
2
7
161
4
Project Central Dwy (NS)/
Slover Ave (EW)
1
35
151
5
Project East Dwy (NS)/
Slover Ave (EW)
14
5
14
2
Project East Dwy (NS)/
Boyle Ave (EW)
64
41
1
Project West Dwy (NS)/
Boyle Ave (EW)
4
1
Figure 9
Gate Access Stacking Diagram
Citrus Avenue Warehouse ProjectSite Access Memorandum
19530-1
N
Project West Driveway Project Central Driveway Project East Driveway
Legend
Queued Semi-Truck Stacking
WB-67 Model Truck
ATTACHMENT A
GATE STACKING ANALYSIS WORKSHEETS
PROJECT:Citrus Avenue Warehouse Project DATE:2023-1221
LOCATION:Project West Driveway at Slover Avenue JN:19530
Gate Distribution:100%INBOUND OUTBOUND INBOUND OUTBOUND
4 4 1 1
DEMAND RATE (q) (veh/hr)4 4 1 1
SERVICE RATE (Q) (veh/hr/channel)2 60 60 60 60
NO. OF SERVICE POSITIONS (N)1 1 1 1
NO. OF STORAGE LANES (N1) 1 1 1 1
PROBABILITY OF NOT EXCEEDING (P) 3 0.05 0.05 0.05 0.05
P'=95%P'=95%P'=95%P'=95%
UTILIZATION FACTOR (q/(N*Q))0.07 0.07 0.02 0.02
LENGTH OF QUEUED VEHICLE (L) FEET 75 75 75 75
LENGTH OF SERVICE VEHICLE (L) FEET 75 75 75 75
Q(M) VALUE 4 0.07 0.07 0.02 0.02
NO. OF VEHICLES BEING SERVED (N)1.00 1.00 1.00 1.00
NO. OF VEHICLES IN QUEUE (M)-0.89 -0.89 -1.26 -1.26
M = ((LN(P) - LN(Q(M))/LN(p)) - 1 ~0 ~0 ~0 ~0
TOTAL NUMBER OF VEHICLES (N+M) 1.00 1.00 1.00 1.00
~1 ~1 ~1 ~1
NO. OF VEHICLES IN EACH LANE 1.00 1.00 1.00 1.00
PER LANE ((N+M)/N1)5 1 1 1 1
LENGTH OF QUEUE (L) FEET 75 75 75 75
Notes:
(1)
(2)
(3)
(4)
(5)
Table A-1
Gate Stacking Analysis1
Q(M) = interpolated table values based on number of service channels (N) and utilization factor (q/NQ)
per Table 8-11 (p.231) of Transportation And Land Development.
Fractional vehicles are rounded up.
AM PM
Source: Transportation and Land Development (Institute of Transportation Engineers, 1988).
Service rates obtained from Entrance-Exit Design and Control for Major Parking Facilities (Crommelin,
1972). However, the lowest entering maximum hourly capacity is 175 vehicles/hour for a coin operated
gate. To provide for a conservative analysis, an entering maximum hourly capacity of 60 vehicles/hour
was used.P' = confidence interval; probability that queue will not exceed the calculated value.
PROJECT:Citrus Avenue Warehouse Project DATE:2023-1221
LOCATION:Project Central Driveway at Slover Avenue JN:19530
Gate Distribution:100%INBOUND OUTBOUND INBOUND OUTBOUND
4 4 1 1
DEMAND RATE (q) (veh/hr)4 4 1 1
SERVICE RATE (Q) (veh/hr/channel)2 60 60 60 60
NO. OF SERVICE POSITIONS (N)1 1 1 1
NO. OF STORAGE LANES (N1) 1 1 1 1
PROBABILITY OF NOT EXCEEDING (P) 3 0.05 0.05 0.05 0.05
P'=95%P'=95%P'=95%P'=95%
UTILIZATION FACTOR (q/(N*Q))0.07 0.07 0.02 0.02
LENGTH OF QUEUED VEHICLE (L) FEET 75 75 75 75
LENGTH OF SERVICE VEHICLE (L) FEET 75 75 75 75
Q(M) VALUE 4 0.07 0.07 0.02 0.02
NO. OF VEHICLES BEING SERVED (N)1.00 1.00 1.00 1.00
NO. OF VEHICLES IN QUEUE (M)-0.89 -0.89 -1.26 -1.26
M = ((LN(P) - LN(Q(M))/LN(p)) - 1 ~0 ~0 ~0 ~0
TOTAL NUMBER OF VEHICLES (N+M) 1.00 1.00 1.00 1.00
~1 ~1 ~1 ~1
NO. OF VEHICLES IN EACH LANE 1.00 1.00 1.00 1.00
PER LANE ((N+M)/N1)5 1 1 1 1
LENGTH OF QUEUE (L) FEET 75 75 75 75
Notes:
(1)
(2)
(3)
(4)
(5)
Table A-2
Gate Stacking Analysis1
AM PM
Source: Transportation and Land Development (Institute of Transportation Engineers, 1988).
Service rates obtained from Entrance-Exit Design and Control for Major Parking Facilities (Crommelin,
1972). However, the lowest entering maximum hourly capacity is 175 vehicles/hour for a coin operated
gate. To provide for a conservative analysis, an entering maximum hourly capacity of 60 vehicles/hour
was used.P' = confidence interval; probability that queue will not exceed the calculated value.
Q(M) = interpolated table values based on number of service channels (N) and utilization factor (q/NQ)
per Table 8-11 (p.231) of Transportation And Land Development.
Fractional vehicles are rounded up.
PROJECT:Citrus Avenue Warehouse Project DATE:2023-1221
LOCATION:Project East Driveway at Slover Avenue JN:19530
Gate Distribution:100%INBOUND OUTBOUND INBOUND OUTBOUND
4 4 1 1
DEMAND RATE (q) (veh/hr)4 4 1 1
SERVICE RATE (Q) (veh/hr/channel)2 60 60 60 60
NO. OF SERVICE POSITIONS (N)1 1 1 1
NO. OF STORAGE LANES (N1) 1 1 1 1
PROBABILITY OF NOT EXCEEDING (P) 3 0.05 0.05 0.05 0.05
P'=95%P'=95%P'=95%P'=95%
UTILIZATION FACTOR (q/(N*Q))0.07 0.07 0.02 0.02
LENGTH OF QUEUED VEHICLE (L) FEET 75 75 75 75
LENGTH OF SERVICE VEHICLE (L) FEET 75 75 75 75
Q(M) VALUE 4 0.07 0.07 0.02 0.02
NO. OF VEHICLES BEING SERVED (N)1.00 1.00 1.00 1.00
NO. OF VEHICLES IN QUEUE (M)-0.89 -0.89 -1.26 -1.26
M = ((LN(P) - LN(Q(M))/LN(p)) - 1 ~0 ~0 ~0 ~0
TOTAL NUMBER OF VEHICLES (N+M) 1.00 1.00 1.00 1.00
~1 ~1 ~1 ~1
NO. OF VEHICLES IN EACH LANE 1.00 1.00 1.00 1.00
PER LANE ((N+M)/N1)5 1 1 1 1
LENGTH OF QUEUE (L) FEET 75 75 75 75
Notes:
(1)
(2)
(3)
(4)
(5)
Table A-3
Gate Stacking Analysis1
AM PM
Source: Transportation and Land Development (Institute of Transportation Engineers, 1988).
Service rates obtained from Entrance-Exit Design and Control for Major Parking Facilities (Crommelin,
1972). However, the lowest entering maximum hourly capacity is 175 vehicles/hour for a coin operated
gate. To provide for a conservative analysis, an entering maximum hourly capacity of 60 vehicles/hour
was used.P' = confidence interval; probability that queue will not exceed the calculated value.
Q(M) = interpolated table values based on number of service channels (N) and utilization factor (q/NQ)
per Table 8-11 (p.231) of Transportation And Land Development.
Fractional vehicles are rounded up.