HomeMy WebLinkAboutSDP202000052 Study Traffic Study 2020-06-22SHIMP ENGINEERING, P.C.
Design Focused Engineering
Jodie Filardo, Director of Community Development
County of Albemarle
Department of Community Development
401 McIntire Road, North Wing
Charlottesville, Virginia 22902
Cc: Adam Moore, VDOT Adam.Moore(cr,vdot.vir ignia.gov
Kevin McDermott, Transportation Planner kmcdermottkalbemarle.org
Megan Nedostup, Principal Planner mnedost Vkalbemarle.org
March 2, 2020
Revised June 22, 2020
RE: REGENTS SCHOOL REQUEST FOR INCREASED ENROLLMENT
Dear Ms. Filardo,
Condition #3 approved with SP2018-11 "The Regents School of Charlottesville," allows for operational
changes at the Regents School site on tax map parcels 07600-00-00-01700 and 07500-00-00-06600
contingent upon the submittal of a formal request that includes a Traffic Impact Assessment (TIA) which
demonstrates adherence to certain traffic impact thresholds. In accordance with Condition #3, this is a
formal request for operational changes to increase student enrollment from 280 students to 328 students at
the Regents School site. As required by Condition #3, traffic study information is included with this
request; there are various Traffic Impact Assessments (TIA's) that demonstrate adherence to the
parameters put forth in Condition #3 by evaluating the anticipated impact of the school on the Fontaine
Avenue interchange. These Traffic Impact Assessments were completed by Engineering and Planning
Resources (EPR) in accordance with the traffic impact scope required by VDOT during the review of
SP2018-11. The December 19, 2019 TIA, last revised April 14, 2020, demonstrates that at an enrollment
of 328 students with a 7:45 a.m. start time, the proposed operational change at the Regents School, would
not result in any movements with delays in excess of the thresholds outlined in Condition #3 for the
Rt29/Fontaine SB intersection.
Impacts from the proposed school on the Rt29/Fontaine NB intersection were previously evaluated in the
October 12, 2018 Traffic Assessment. This assessment evaluated the impacts of the school with an
enrollment of 460 students at a start time that was during the AM regular peak hour of traffic. Since this
enrollment request is for 328 students, 132 students less than what was evaluated in the October 12, 2018
Traffic Assessment, and the school has operational limitations on their start time per the conditions of
approval, which limit the school to opening no later than 7:45 a.m. to avoid traffic conflicts with the
projected background AM peak hour traffic, any traffic impacts on the Rt29/Fontaine NB intersection
from 328 students with a 7:45 a.m. start time will be minor and not in conflict with the conditions of
approval. As allowed by Condition #3 (e), the Traffic Impact Assessment dated October 12, 2018 and
associated supplemental TIA's submitted with SP20180001 I are being used as the baseline traffic data for
this supplement. The TIA dated December 19, 2019 and last revised April 14, 2020 and the October 12,
2018 TIA demonstrate the following, as specifically outlined in Condition #3:
a. The proposed operational changes would not result in any movements with a delay greater
than 50 seconds; and
b. The proposed operational changes would not result in any movements with a delay greater
than 35 seconds, unless it will have a delay greater than 35 seconds in the future no -build,
provided that if the future no -build shows a delay greater than 35 seconds the future build
cannot increase by more than 10 seconds; and
912 E. High St. Charlottesville, VA 22902 1434.227.5140 1 shimp-engineering.com
c. The proposed operational changes would not result in any movements increasing by more
than 15 seconds between the future build and no build conditions; and
d. Operations at the US 29 Bypass interchange at Fontaine Avenue Extended may not result in it
being placed on the VDOT Top 100 Potential for Safety Improvement (PSI) locations for
intersections or segments.
October 12, 2018 TIA, Rt29/Fontaine NB Intersection
The October 12, 2018 TIA evaluated the impact of 230 and 460 students during the peak hour. Even at an
enrollment of 460 students and a start time during the peak hour of background traffic, the projected
traffic impacts are minimal on the Rt29/Fontaine NB Intersection and do not conflict with the thresholds
outlined for operational changes in Condition #3. The "no build condition" which is for no school
construction in the 2018 TIA, compared to the proposed "build condition" for 230 students with a start
time during the peak hour is provided below from the October 12, 2018 TIA:
No Build Year 2028
October 12, 2018 1 Regents School Site Traffic Assessment
Enrollment: none; Start time: during peak hour traffic
2. AM Year 2028 no build conditions
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 L05/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
Movement/Approach
Fontaine EB Fontaine WB Rte 29 NB
Overall
EBL EBT WBT WBR NBL NBR
2. Rte 29/Fontaine NB Movement L05/Delay A/3.1 A/1.0 A/0.4 A/3.6 B/11.7 A/9.5 A
Approach LOS/Delay A/1.2 A/2.4 A/9.6 5.7
Movement Queue 31 0 1 0 72 58 0
SP2018-11 Operational Change Request 12
Build Year 2028
October 12, 2018 1 Regents School Site Traffic Assessment
Enrollment: 230; Start time: during peak hour traffic
3. AM Year 2028 build conditions (230 students)
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/2.7 F/115.7 F
Approach LOS/Delay A/1.7 A/2.7 F/115.7 64.5
Movement Queue 8 73 500
Movement/Approach
Fontaine EB Fontaine WB Rte 29 NB
Overall
EBL EBT WBT WBR NBL NBR
2. Rte 29/Fontaine NB Movement LOS/Delay A/3.4 A/1.0 A/0.6 A/3.9 5/13.2 A/9.5 A
Approach LOS/Delay A/1.2 A/2.6 A/9.8 5.9
Movement Queue 42 0 0 111 76 0
The greatest delay at the Rt 29/Fontaine NB intersection between the no build and build condition in 2028
is the Rt 29 NB NBL movement which have a delay increase of 1.5 seconds.
In the October 12, 2018 study, EPR evaluated the impact of 460 students on the Rt 29/Fontaine NB
intersection during the AM peak hour of traffic.
Build Year 2038
October 12, 2018 1 Regents School Site Traffic Assessment
Enrollment: 460; Start time: during peak hour traffic
8. AM Year 2038 build conditions (460 students)
Year 2038 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/1.8 A/3.5 F/175.7 F
Approach LOS/Delay A/1.8 A/3.5 F/175.7 69.7
Movement Queue 13 102 500
Movement/Approach
Fontaine EB Fontaine WB Rte 29 NB
Overall
EBL EBT WBT WBR NBL NBR
2. Rte 29/Fontaine NB Movement LOS/Delay A/3.6 A/0.9 A/0.8 A/4.8 C/17.6 B/13.0 A
Approach LOS/Delay A/1.3 A/3.1 B/13.4 8.3
Movement Queue 42 0 6 1 200 110 1 0
At an enrollment of 460 students. the anticipated impacts on the Rt 29/Fontaine NB intersection are
expected to be minimal. Again, the movement that would experience the longest delays is the NBL
movement which would experience a delay increase of 4.4 seconds from the 2028 build condition with
230 students. When compared to no build conditions, which in the case of the October 12, 2018 study,
was a no construction scenario, the delay increase for the NBL movement between the no build scenario
and the build condition of 460 students during the AM peak hour was 5.9 seconds. The delay from an
SP2018-11 Operational Change Request 13
enrollment of 460 students during the peak hour which has heavier background traffic than the 7:15-7:45
a.m. drop-off time for 132 additional students is less than the delay thresholds outlined in Condition #3.
The delays at the Rt29/Fontaine NB intersection for an enrollment of 328 with a 7:45 a.m. start time will
be less than the delays for an enrollment of 460 students with a start time during the peak hour because
the enrollment number is less and the background traffic is less.
Here's a summary explanation of how the data provided from the October 12, 2018 TIA demonstrates
compliance with the following conditions:
a. The proposed operational changes would not result in any movements with a delay greater
than 50 seconds; and
Even with an enrollment of 460 students at a start time during the peak hour there are no
movements in the Rt 29/Fontaine NB intersection with a delay greater than 50 seconds. This
operational request change is for 328 students with a start time no later than 7:45 a.m. and
therefore, the impacts on this intersection with fewer students during a less busy time will be
less than the impacts of an enrollment of 460 students with a 7:45 a.m. start time.
8. AM Year 2038 build conditions (460 students)"
Movement/Approach
Fontaine EB Fontaine We Me 29 NB
Overall
ESQ EBT WB7 WBR NBl NBR
2. Me 29/Fontaine NS Movement LOS/Delay A/3.8 A/0.9 A10.$ I A/4.8 C/17.8 8/13.0 A
Approach LOS/Delay A/1.3 A/3.1 8113A 8.3
Movement Queue 42 1 0 5 200 110 1 0
b. The proposed operational changes would not result in any movements with a delay greater
than 35 seconds, unless it will have a delay greater than 35 seconds in the future no -build,
provided that if the future no -build shows a delay greater than 35 seconds the future build
cannot increase by more than 10 seconds; and
With an enrollment of 460 students at a start time during the peak hour there are no
movements in the Rt29/Fontaine NB intersection with a delay greater than 35 seconds. Again,
this request is for 328 students which will result in fewer trips and less delays than 460
students.
Movement/Approach
Fontaine E8 Fontaine w8 Rte 29 NB
Overa[I
ESL EST WB7 WBR NBL NBR
2- Me 29/Fontaine NB Movement LOS/Delay A136 A/0-9 A10-$ I A/4.8 C/17.r? 8/13-0 A
Approach LOS/Delay A11-3 A/3-1 8/134 8.3
Movement Queue 42 0 6 200 210 1 0
c. The proposed operational changes would not result in any movements increasing by more
than 15 seconds between the future build and no build conditions; and
As aforementioned the greatest delay is the NBL movement which incurs a 5.9 second delay
between the no build and the 460 student enrollment build condition during the peak hour.
The delay in the NBL movement between an enrollment of 230 students and 460 students is
4.4 seconds.
SP2018-11 Operational Change Request 14
d. Operations at the US 29 Bypass interchange at Fontaine Avenue Extended may not result in
it being placed on the VDOT Top 100 Potential for Safety Improvement (PSI) locations for
intersections or segments.
The US29 Bypass interchange at Fontaine Avenue Extended is not currently on the VDOT
Top 100 Potential for Safety Improvement (PSI) locations for intersections or segments.
March 6, 2019 and December 19, 2019 revised April 14, 2020 TIAs Rt29/Fontaine SB Intersection
The traffic impact assessment and supplements completed during the review of SP2018-11 showed the
movement most impacted by the construction of the school would be the southbound left (SBL)
movement at the Rt29/Fontaine SB intersection. EPR completed an additional traffic assessment dated
December 19, 2019 and last revised April 14, 2020 to evaluate this critical movement if the school were
to operate with 328 students with a start time of 7:45 a.m. For the purposes of the conditions of approval,
an enrollment of 280 students with a 7:45 a.m. start time is considered the "no -build" condition. The no
build condition was evaluated in a June 14, 2019 supplemental traffic assessment and is provided below
under the title "No Build Year 2028." The build condition is for 328 students with a 7:45 a.m. start time is
provided below under the title "Build Year 2028" and was evaluated with the TIA supplement dated
December 19, 2019 last revised April 14, 2020.
No Build Year 2028
June 14, 2019 1 Regents School Site Traffic Assessment
Enrollment: 280; Start time: 7:45 a.m.
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
Build Year 2028
December 19, 2019 revised April 14, 2020 1 Regents School Site Traffic Assessment
Enrollment: 328; Start time: 7:45 a.m.
Table 4 2028 Build Conditions between 7:15-7:45 AM (328 Students)
Year 2028 Build AM
Movement/Approach
Fontaine EB Fontaine WB Rte 29 SB
Overall
EBT/R WBL/T SBL/R
1. Rte 29/Fontaine S9 Movement LOS/Delay A/1.8 A/3.3 D/34.9 B
Approach LOS/Delay A/1.8 A/3.3 D/34.9 14.8
Movement Queue 10 91 375
These traffic assessments demonstrate adherence to the thresholds outlined in Condition #3 for an
enrollment of 328 and a start time of 7:45 a.m.
Here's a summary explanation of how the data provided from the December 19, 2019 last revised April
14, 2020 TIA supplement demonstrates compliance with the following conditions:
SP2018-11 Operational Change Request 15
a. The proposed operational changes would not result in any movements with a delay greater
than 50 seconds; and
An enrollment of 328 students with a start time no later than 7:45 a.m. will not result in any
movements with a delay greater than 50 seconds.
Table 4 2028 Build Conditions between 7:15-7:45 AM (328 Students)
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/1.8 A/3.3 D/34.9 B
Approach LOS/Delay A/1.8 A/3.3 D/34.9 14.8
Movement Queue 10 91 375
b. The proposed operational changes would not result in any movements with a delay greater
than 35 seconds, unless it will have a delay greater than 35 seconds in the future no -build,
provided that if the future no -build shows a delay greater than 35 seconds the future build
cannot increase by more than 10 seconds; and
There are no delays greater than 35 seconds.
Table 4 2028 Build Conditions between 7:15-7:45 AM (328 Students)
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/1.8 A/3.3 D/34.9 B
Approach LOS/Delay A/1.8 A/3.3 D/34.9 14.8
Movement Queue 10 91 375
c. The proposed operational changes would not result in any movements increasing by more
than 15 seconds between the future build and no build conditions; and
The proposed operational changes will not result in any movements increasing by more than
15 seconds. The greatest delay increase is 7.2 seconds for the SBL movement from 27.7
seconds to 34.9 seconds.
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
Table 4 2028 Build Conditions between 7:15-7:45 AM (328 Students)
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/1.8 A/3.3 D/34.9 B
Approach LOS/Delay A/1.8 A/3.3 D/34.9 14.8
Movement Queue 10 91 375
d. Operations at the US 29 Bypass interchange at Fontaine Avenue Extended may not result in
it being placed on the VDOT Top 100 Potential for Safety Improvement (PSI) locations for
intersections or segments.
The US29 Bypass interchange at Fontaine Avenue Extended is not currently on the VDOT
Top 100 Potential for Safety Improvement (PSI) locations for intersections or segments.
SP2018-11 Operational Change Request 16
The October 12, 2018 Assessment and December 19, 2019 last revised April 14, 2020 Supplement are
specifically referenced in this request because they evaluated the Fontaine Interchange. All traffic
assessments and supplements completed during the review of and subsequent to the approval of SP2018-
11 are provided with this letter for your reference. A brief outline of the content included in the
assessment and supplements is provided below:
October 12, 2018 Traffic Impact Assessment: Initial traffic assessment completed in response to VDOT
and County comments, includes trip generation methodology and counts
March 6, 2019 Traffic Supplement: Supplement provided to evaluate the impact of 230 students with a
start time of 7:45 a.m. on the SBL movement
June 4, 2019 Traffic Supplement: Supplement provided to evaluate the impact of 280 students with a
start time of 7:45 a.m. on the SBL movement. (280 students should have been evaluated in the previous
studies; there was a transcription error which resulted in 230 students being evaluated for the build year
2028 in the initial two studies)
July 1, 2019 Traffic Supplement: By -right development comparison provided at the request of VDOT
July 5, 2019 Traffic Supplement: Analyzed enrollment thresholds for 320-480 students with a school
day start time of 7:45 a.m. (This supplement was not accepted by the County because it was completed
after a submittal deadline however it is included because the December 19, 2019 revised April 14, 2020
supplement references the July 5, 2019 assessment)
December 12, 2019 revised April 14, 2020 Supplement: Completed to evaluate impact of 328 students
with a 7:45 a.m. start time on the SBL movement
Thank you for your review of this request.
Best Regards,
Kelsey Schlein
Planner
Kelsey(a,shimp-en ingeeringcom
ATTACHMENTS:
Traffic Impact Assessment dated October 12, 2018
Traffic Supplement dated March 6, 2019
Traffic Supplement dated June 14, 2019
Traffic Supplement dated July 1, 2019
Traffic Supplement dated July 5, 2019
Traffic Supplement dated December 12, 2019 Revised April 14, 2020
SP2018-11 Operational Change Request 17