HomeMy WebLinkAboutPVH MEDICAL OFFICE BUILDING & PARKING STRUCTURE - PDP - 14-07 - REPORTS - TRAFFIC STUDY (3)l
queue length of 32 feet in the morning peak hour and 190 feet in the
afternoon peak hour. From this analysis, it can be concluded that the
driveways to the commercial property to the north would be blocked
similar to that which occurs with the current traffic.
The TIS analyzed two levels of expansion of PVH: Phase 1 - increase of
the surgical area, renovation of the emergency department, and building
the parking garage; and Phase 2 - a medical office building, central
utility plant relocation, and a new patient bed tower. The following
queue analysis depicts implementation of both Phase 1 and Phase 2 by the
mid range future (2013). Using the mid range total peak hour traffic,
the 95"' percentile southbound queue is calculated at 326 feet and 583
feet in the respective peak hours. Applying the adjustments, discussed
earlier, results in a queue length of 40 feet in the morning peak hour
and 190 feet in the afternoon peak hour. It is concluded that the
driveways to the commercial property to the north would be blocked
similar to that which occurs with the current traffic. The southbound
right -turn lane will provide the ability for some of the right -turning
vehicles to get out of the right -most southbound through lane. However,
the southbound queue is primarily caused by general traffic on Lemay
Avenue, not related to Poudre Valley Hospital.
DELICH ASSOCIATES Traffic & T,ransportation Engineeringl'
2272 Glen Haven Drive Loveland Colorado 80538
Phone:(970) 669=2061 Fax: (970) 669-5034� r
MEMORANDUM
TO: Angie Milewski, BHA Design
Marcia Lester, Davis Partnership
City of Fort Collins
FROM: Matt Delich
DATE: August 8, 2007
SUBJECT: Expansion of the PVH Lemay Campus Transportation Impact Study
- Queue analysis at the Lemay/Doctors intersection
(File: 0692ME02)
The following documents the analyses of the north leg of the
Lemay/Doctors intersection. The owner of the commercial property to the
north of the existing parking lot (future parking garage) expressed
concern that the south driveway.is/would be blocked by traffic on Lemay
Avenue. This driveway is approximately 120 feet north of the crosswalk
for Lemay Avenue on the north side of Doctors Lane. There is a second
driveway that is approximately 300 feet north of the crosswalk. The
analyses contained herein address the peak hour conditions, since these
are the time periods addressed in the traffic impact study (TIS). The
analysis procedure determines the 95th percentile queue length.
It is my understanding that the owner of the commercial property
indicated that the southbound queue (upstream from the Lemay/Doctors
signalized intersection) blocks the south driveway to his parcel. The
operations analysis of the Lemay/Doctors intersection (current traffic -
11/15/06) shows that the 95th percentile southbound queue is calculated at
268 feet in the morning peak hour and 561 feet in the afternoon peak
hour. Right turns into the PVH parking lot are made from the right -most
through lane on Lemay Avenue. Observations were conducted on August 7
and 8, 2007, during the peak hours. In the morning peak hour, the
average length of queue was 32 feet. In the afternoon peak hour, the
average length of queue was 180 feet. Comparing the calculated queue
length and the observed queue indicates that the analysis procedure over-
estimates the actual queue length on the order of 8.4 times in the
morning peak hour and 3.1 times in the afternoon peak hour. It is
concluded that the calculated queue lengths should be adjusted
accordingly to better reflect the field observations. It is further
concluded that the south driveway is not blocked during the morning peak
hour, but it is routinely blocked during the afternoon peak hour.
The background traffic in the future analysis years depict the traffic
forecast with no PVH expansion, but with the expected normal traffic
growth in the area. Using the mid range (2013) background traffic
forecast, the 95th percentile southbound queue is calculated at 270 feet
in the morning peak hour and 588 feet in the afternoon peak hour.
Applying the adjustments discussed in the previous paragraph results in a