HomeMy WebLinkAboutSDP202000052 Study Traffic Study 2019-06-14EPRpc EPR, PAC. "ENGINEERING & PLANNING RESOURCES"
902 E JEFFERSON ST. UNIT 101, CHARLOTTESVILLE, VA 22902
MIN
TO: JUSTIN SHIMP, P.E. FROM: BILL WUENSCH, P.E., PTOE;
WEI HE
ORGANIZATION: SHIMP ENGINEERING DATE: JUNE 14, 2019
PHONE NUMBER: SENDER'S REFERENCE NUMBER:
RE: REGENTS SCHOOL SITE TRAFFIC ASSESSMENT YOUR REFERENCE NUMBER:
SUPPLEMENT —YEAR 2028 WITH 280 STUDENTS
URGENT X FOR YOUR USE PLEASE COMMENT PLEASE REPLY PLEASE RECYCLE
The purpose of this memorandum is to summarize a supplemental traffic analysis for the
proposed Regents School Site to examine the impact of the proposed Regents School with 280
students on Fontaine Avenue/Route 29 Southbound Ramp intersection in the future year 2028.
To accomplish the goal, this analysis assumed the school start time being 7:45 AM and all
school trips arriving in the morning between 7:15-7:45 AM to examine the future year 2028
build conditions between 7:15-7:45 AM. The proposed Regents School was assumed to have
280 students in the future year 2028. The future year 2028 build conditions between 7:15-7:45
AM were then compared to the future year 2028 no build conditions in the commuter AM peak
hour, which was obtained from the prior Regents School Site Traffic Assessment (10/12/2018),
which evaluated the impact of the proposed Regents School with 280 students in the future
year 2028 during the typical commuter peak hour.
The following provides a brief summary of this information.
Trip Generation
The trip generation of the proposed Regents School with 280 students was calculated using the
same methodology as in the prior Regents School Site Traffic Assessment (10/12/2018) and
summarized in Table 1 below.
Table 1 Trip Generation with 280 Students
Scenario 2028 AM w/ 280 students 2028 PM w/ 280 students
In/Out Inbound Outbound Inbound Outbound
Total Trips 121 77 55 87
EPRpc EPR, PAC. "ENGINEERING & PLANNING RESOURCES"
902 E JEFFERSON ST. UNIT 101, CHARLOTTESVILLE, VA 22902
Traffic Volumes
2028 No Build Traffic Volumes between 7:15-7:45 AM
2028 no build traffic volumes between 7:15-7:45 AM was obtained from a prior supplement
3/6/2019) and illustrated in Figure 1 below.
Figure 12028 No Build Traffic Volumes between 7:15-7:45 AM
AM 295B EBT EBR WBL WBT 5BL 5BT SBR Total
7:15 4 4 41 4 67 0 0, 120
2 2 290 14 Vehicle 7:30 8 2 55 3 78 1 1, 148
J It r
Total
192 1/2 Hour 12 6 96 7 145 1 1 268
Fontaine Hour 24 12 192 14 290 2 2 535
y
24 P H F 0.91
Truck
12 1/2 Hour 1 0 0 1 2 1 0
HVP 9% 0% 0% 14% 2% 100% 0%
29 SB
Site Trip Distribution and Assignment
Trip distribution was also obtained from the prior supplement (3/6/2019) and illustrated in
Figure 2 below. It should be noted that 2% of the trips were assumed from/to the local
residential area along Buckingham Circle, Reservoir Road, and Foxhaven Farm.
Figure 2 Site Trip Distribution
AM 29 SB
25% 0 0 ~
j i L r o
Fontaine
73% ~
25%
29 SB
The site trips were assigned to the road network based on the trip generation and the
distribution as noted above. The build condition site trips for the future year 2028 with 280
students are summarized and doubled for Synchro traffic analysis purpose as illustrated in
Figure 3 below.
EPRpc EPR, PAC. "ENGINEERING & PLANNING RESOURCES"
902 E JEFFERSON ST. UNIT 101, CHARLOTTESVILLE, VA 22902
Figure 3 2028 Site Trips with 280 Students
FM 29 SR
0 0 176
r 0
112
39
29 SB
EBT ERR WBL WBT SBL SBT SBR Total
7:15 22 8 0 35 0 0 12 77
Vehicl 7:30 34 11 0 53 0 0 18 116
e Total
1/2 Hour 56 19 ON 0 ON 193
Hour 112 38 0 175 0 0 50 386
PHF
Truck 1/2 Hour 1 0 0 1 0 0
HVP
2028 Build Traffic Volumes between 7:15-7:45 AM
Combining the background traffic with the site trips as shown, Figure 4 below illustrates the
build condition traffic volume calculation.
Figure 4 2028 Build Traffic Volumes between 7:15-7:45 AM
AM 29 SB EBT EBR WBL WBT SBL SBT SBR Total
7:15 26 12 41 39 67 0 12 197
4-
0fit229190 Vehicl 7:30 42 13 55 56 78 1 19 254 j
Ilyr a
Total 192
1/2 Hour 68 25 96 95 145 1 31 461 Fontaine
Hour 136 50 192 190 290 2 52 922 136
PHF 0.87 Truck
5o
1/2 Hour 2 0 2 2 1 HVP
3% 0% 0% 2% 1% 100% 0% 29
SB 2028
Build Conditions between 7:15-7:45 AM The
future year 2028 build conditions between 7:15-7:45 AM were analyzed in Synch
ro/SimTraffic 9.2. It should be noted that, the same as in the prior Regents School Site Traffic
Assessment (10/12/2018) and prior supplements, SimTraffic was utilized for the level of service,
delay, and queue analyses. The following Table 2 summarizes the analysis results: Table
2 2028 Build Conditions between 7:15-7:45 AM Year
2028 Build AM Movement/
Approach Fontaine
EB Fontaine WB Rte 29 SB Overall
EBT/
R WBL/T SBL/R 1.
Rte 29/Fontaine SB Movement LOS/Delay A/1.7 A/3.2 D/27.7 B Approach
LOS/Delay A/1.7 A/3.2 D/27.7 12.0 Movement
Queue 11 87 350
EPRpc EPR, PAC. "ENGINEERING & PLANNING RESOURCES"
902 E JEFFERSON ST. UNIT 101, CHARLOTTESVILLE, VA 22902
2028 No Build Conditions in Commuter AM Peak Hour
The future year 2028 no build conditions traffic analysis results were obtained from the prior
Regents School Site Traffic Assessment (10/12/2018) for comparison purpose. The following
Table 3 summarizes the analysis results:
Table 3 2028 No Build Conditions in Commuter AM Peak Hour
Year 2028 No Build AM
Movement/Approach
Fontaine EB Fontaine WB Rte 29 SB
Overall
EBT/R WBL/T SBL/R
1. Rte 29/Fontaine SB Movement LOS/Delay A/1.5 A/2.3 E/45.4 D
Approach LOS/Delay A/1.5 A/2.3 E/45.4 30.1
Movement Queue 4 57 500
Finding: comparison of 2028 Build Conditions between 7:15-7:45 AM and 2028 No Build
Conditions in Commuter AM Peak Hour
Comparing analysis results above, the finding of this study effort is — the traffic operation in the
future year 2028 build conditions between 7:15-7:45 AM is better than in the future year 2028
no build conditions in commuter AM peak hour:
The overall intersection level of service is LOS B in the future year 2028 build conditions
between 7:15-7:45 AM, while it is LOS D in the future year 2028 no build conditions in
commuter AM peak hour.
The overall intersection delay is 12.0-seconds in the future year 2028 build conditions
between 7:15-7:45 AM, while it is 30.1-seconds in the future year 2028 no build
conditions in commuter AM peak hour.
Route 29 southbound ramp delay is 27.7-seconds, which falls at the lower end of LOS D,
in the future year 2028 build conditions between 7:15-7:45 AM, while it is 45.4-seconds,
which falls at the upper end of LOS E, in the future year 2028 no build conditions in
commuter AM peak hour.
Route 29 southbound ramp queue is 350 feet in the future year 2028 build conditions
between 7:15-7:45 AM, while it is longer than 500 feet in the future year 2028 no build
conditions in commuter AM peak hour.
End of Memorandum
Attachment: 2028 Build Conditions Between 7:15-7:45 AM SimTraffic Reports
SimTraffic Performance Report
2028 Build AM 280 Students 06/11/2019
1: Rte 29 SB On-Ramp/Rte 29 SB Off -Ramp & Fontaine Performance by lane
Lane EB
Movements Served TR
Denied Del/Veh (s)
Total Del/Veh (s) 1.7
Total Network Performance
WB SB All
LT LTR
0.4
3.2 27.7 12.0
Denied Del/Veh (s) 0.4
Total DelNeh (s) 12.7
Regents School Study Supplement SimTraffic Report
EPR Page 1
Queuing and Blocking Report
2028 Build AM 280 Students 06/13/2019
Intersection: 1: Rte 29 SB On-Ramp/Rte 29 SB Off -Ramp & Fontaine
Movement
Directions Served
Maximum Queue (ft)
Average Queue (ft)
95th Queue (ft)
Link Distance (ft)
Upstream Blk Time (%)
Queuing Penalty (veh)
Storage Bay Dist (ft)
Storage Blk Time (%)
Queuing Penalty (veh)
Network Summ
EB WB
TR LT
11 87
0 32
5 69
708 507
Network wide Queuing Penalty: 0
SB
LTR
350
125
268
520
0
0
Regents School Study Supplement SimTraffic Report
EPR Page 1