HomeMy WebLinkAboutSDP202000052 Study Traffic Study 2019-07-01EPRpc EPR, PAC. "ENGINEERING & PLANNING RESOURCES"
902 E JEFFERSON ST. UNIT 101, CHARLOTTESVILLE, VA 22902
MEMORANDUM
TO: JUSTIN SHIMP, P.E.
ORGANIZATION: SHIMP ENGINEERING
PHONE NUMBER:
FROM: BILL WUENSCH, P.E., PTOE;
WEI HE
DATE: J ULY 01, 2019
SENDER'S REFERENCE NUMBER:
RE: REGENTS SCHOOL SITE TRAFFIC ASSESSMENT YOUR REFERENCE NUMBER:
SUPPLEMENT #4 BY -RIGHT DEVELOPMENT ANALYSIS
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 by -right development, 23 single
family homes, at the proposed Regents School Site on Fontaine Avenue/Route 29 Southbound
Ramp intersection in the future year 2028 AM peak hour.
To accomplish the goal, this analysis obtained the 2028 no build AM peak hour traffic volumes
and traffic performance results from the prior Regents School Site Traffic Assessment
10/12/2018), added in site trips generated by the by -right development, and analyzed the
2028 build AM peak hour traffic performance results with the 23 single family homes.
The following provides a brief summary of this information.
2028 No Build AM Peak Hour Traffic Volumes
2028 no build AM peak hour traffic volumes were obtained from the prior Regents School Site
Traffic Assessment (10/12/2018) and are illustrated in Figure 1 below.
Figure 12028 No Build AM Peak Hour Traffic Volumes
AM 29 SB
39 531 ~ 50
41 r 212
Fontaine
40
20
29 SB
EPRpc EPR, PAC. "ENGINEERING & PLANNING RESOURCES"
902 E JEFFERSON ST. UNIT 101, CHARLOTTESVILLE, VA 22902
2028 No Build AM Peak Hour Traffic Performance
2028 no build AM peak hour traffic performance results were obtained from the prior Regents
School Site Traffic Assessment (10/12/2018). The following Table 1 summarizes the analysis
results:
Table 12028 No Build AM Peak Hour Traffic Performance Results
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
Trip Generation
The trip generation of the by -right development, 23 single family homes, was calculated using
web -based ITE Trip Generation Manual (10th edition) and is summarized in Table 2 below.
Table 2 By -right Development Trip Generation
By -right Development Trip Generation
LU CODE Units Weekday AM Total AM IN AM OUT PM Total PM IN PM OUT
2028 210 23 269 21 5 16 25 16 9
AM Site Trip Distribution and Assignment
AM Trip distribution was assumed as per the existing traffic pattern and is illustrated in Figure 2
below.
Figure 2 AM Site Trip Distribution
AM 29 58
Fontaine
29 5B
Outbound
EPRpc EPR, PAC. "ENGINEERING S PLANNING RESOURCES"
902 E JEFFERSON ST. UNIT 101, CHARLOTTESVILLE, VA 22902
The AM site trips as summarized in Table 2 were assigned to the road network based on the
distribution as noted above. Figure 3 illustrates the AM site trips generated by the by -right
development, 23 single family homes.
Figure 3 AM Site Trips
AM 29 SB
Fontaine
29 SD
2028 Build AM Peak Hour Traffic Volumes
The AM site trips as shown in Figure 3 were added to the 2028 no build AM peak hour traffic
volumes as shown in Figure 1 resulting the 2028 build AM peak hour traffic volumes. Figure 4
illustrates the 2028 build AM peak hour traffic volumes.
Figure 4 2028 Build AM Peak Hour Traffic Volumes
Fontaine
29 SB
29 SB
2028 Build AM Peak Hour Traffic Performance
2028 build AM peak hour traffic performance was analyzed in Synchro/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 results were utilized for the level of service, delay, and queue
analyses. The following Table 3 summarizes the traffic performance results for 2028 build AM
peak hour.
E1'RP EPR, PAC. "ENGINEERING & PLANNING RESOURCES"
902 E JEFFERSON ST. UNIT 101, CHARLOTTESVILLE, VA 22902
Table 3 2028 Build AM Peak Hour Traffic Performance Results
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/1.6 A/2.4 F/50.6 D
Approach LOS/Delay A/1.6 A/2.4 F/50.6 32.8
Movement Queue 0 62 500
Findings
Comparing the traffic performance results above for 2028 build AM peak hour to the traffic
performance results for 2028 no build AM peak hour, the impact of the site trips generated by
the by -right development, 23 single family homes, is minor on Fontaine Avenue/Route 29
Southbound Ramp intersection in the future year 2028 AM peak hour — the overall delay at the
intersection is 2.7 seconds longer, the delay on Fontaine Avenue is 0.1 second longer for both
eastbound and westbound, and the delay on Route 29 Southbound Ramp is 5.2 second longer.
End of Memorandum
Attachment: 2028 Build Peak Hour SimTraffic Reports
SimTraffic Performance Report
2028 Build AM (By -right Development) 07/01/2019
1: Rte 29 SB On-Ramp/Rte 29 SB Off -Ramp & Fontaine Performance by lane
Lane EB WB SB All
Movements Served TR LT LTR
Denied Del/Veh (s) 5.8
Total Del/Veh (s) 1.6 2.4 50.6 32.8
Regents School Study 2018 SimTraffic Report
EPR Page 1
Queuing and Blocking Report
2028 Build AM (By -right Development) 07/01/2019
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)
Regents School Study 2018
EPR
WB SB
LT LTR
62 541
16 285
47 553
486 525
13
0
SimTraffic Report
Page 1