HomeMy WebLinkAboutCHAPARRAL PUD - PRELIMINARY - 60-87 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYf� .
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F-
MEMORANDUM
To: Dan Herlihey
Leo Schuster
Flick Ensdorff
From: Matt Delich
Date: September 24, 1987
Subject: Chaparral PUD Traffic Analysis
This memorandum addresses the traffic analyses
related to the Chaparral PUD located in the southwest
quadrant of the Shields/Casa Grande intersection in Fort
Collins, Colorado. This parcel was previously submitted
and approved as Phase 3 of the Casa Grande PUD. The
overall traffic impacts of the Casa Grande PUD were
addressed in the "Casa Grande PUD Traffic Impact Study"
May 1985. In that study, Phase 3 was comprised of 66
multi -family dwelling units with all access to Laredo
Lane via five private driveways. The trip generation
from these 66 units as reported in the 1985 study is
shown in Table 1. Operations at all interior
intersections were reported at acceptable levels of
service during the peak. hours with stop sign control.
Land Use
Phase 3 Casa
Grande PUD -
66 D.U.
Chaparral PUD
Accessing Hickok
Drive - 3 D.U.
Accessing sharps
Street 12 D.U.
Accessing Laredo
Lane - 40 D.U.
Table 1
Trip Generation
Daily
Trips
337
30
120
400
A.M.
Peak
P.M
Peak.
Trips
Trips
Trips
Trips
in
out
in
out
7
33
26
13
1 2
2
1
3 7
8
4
8 22
25
15
The Chaparral PUG proposes to change the Phase 3 .
portion of the Casa Grande PUD to 55 single family lots
(dwelling units). The proposed site plan is shown in
Figure 1. Three units would gain direct driveway access
to Hickok Drive. Twelve units would access the
extension of Sharps Street as a cul-de-sac south of Casa
Grande Boulevard. Forty units would access Laredo Lane
via either direct driveway access to Laredo Lane or a
cul-de-sac east of Laredo Lane. Table i also shows the
trip generation from the proposed Chaparral PUG
delineated by their respective access points.
While the land use change causes a potential 60
percent increase in daily travel and a potential 25
percent increase in average peak hour travel, the
absolute increase in trips is quite small. There will
be no change in the acceptable operation at the interior
intersections. The operation at the Shields/Casa Grande
intersection will be as reported in the 1985 traffic
study. Delays that may be experienced by the left. -turn
exits from Casa Grande to northbound Shields are due to
the expected traffic volumes on Shields Street.
Provision of right-- and left -turn lanes on Casa Grande
will confine delays to only those persons• desiring to
turn left. Good signal progression on Shields Street
will improve the operation at this stop sign control
intersection.