HomeMy WebLinkAboutNORTH LEMAY PLAZA PUD - PRELIMINARY - 57-87 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYn
PRELIMINARY
TRAFFIC IMPACT STUDY
FOR
LEMAY PLAZA P.U.D.
SEPTEMBER 1987
PREPARED BY: PARSONS & ASSOCIATES CONSULTING ENGINEERS
432 LINK LANE PLAZA
FORT COLLINS, COLORADO 80524
(303) 221-2400
PROJECT NO.: 87.18 PDQ
- 0 0
■
PRELIMINARY TRAFFIC IMPACT STUDY
' LEMAY PLAZA P.U.D.
PROJECT LOCATION
The site is 1.60 acres and is located at the Southwest corner of
'
Lemay Avenue and Conifer Street,
The Lemay frontage is 210 feet
which is a "T" intersection.
and the Conifer frontage is 302
feet. Lake Canal
runs along the
South property
line, and at the
Southeast corner
of the property
there is a 4'
x 17' box culvert
'
under Lemay. The
proposed access
to the site is
one curb cut on
each street.
'
PROJECT DESCRIPTION
'
Lemay Plaza P.U.D. is intended to be a neighborhood retail center
consisting of a PDQ convenience store (2600 square feet with 3
gas pumps) and 10,000 square feet of undetermined use retail
space. The anticipated use is service establishments on
'
specialty retail shops.
'
PRELIMINARY RESULTS
A. ADJACENT STREET TRAFFIC
■
Figures 1 through 4 show the traffic counts obtained during
the hours of 7 to 8 AM and 4 to 6 PM on Thursday, August 27,
1987, broken out in 15 minutes and peak hour intervals. The
bulk of the AM traffic flows South on Lemay and the bulk of
'
the -PM traffic flows North on Lemay.
'
Lemay is currently a two-lane county road, a 30-foot section.
Conifer is a city collector with a 60' section. The
.
intersection operates at A/B Level.
■
B. TRIP GENERATION
The trip generation rates shown in Figure 5 were obtained
from I.T.E.'s Trip Generation Report (See Figures 8 and 9).
These rates were separated into two categories: those trips
from passing traffic and those generated by the site. These
site generated trips were then distributed according to the
same percentages of existing traffic.
C. SIGNAL WARRANT
Based on the existing traffic counts, the intersection does
not warrant a traffic signal. Adding in the site generated
trips, the intersection will still not warrant a signal at
this time.
0
D. POSSIBLE PROBLEM AREAS
During the AM Peak, there appears to be no problems with
movements into or out of the site. During the PM Peak,
possible left turn conflicts exist --with the northbound Lemay
traffic.
E. PROPOSED LEMAY IMPROVEMENTS
Lemay will eventually be an arterial. Based on the amount of
traffic at the present time, a 52-foot section is adequate.
The box culvert crossing of Lake Canal is wide enough for
this section. If_ the City desires improvements to Lemay at
the time of the development of this site, we propose a 52-
foot section, which would allow three lanes, with sidewalk
and bike lanes, which will:provide essentially a turning lane
into the East entrance to the site. If the City desires that
this site. If the City desires that this site not develop
their portion of Lemay at this time and contribute at a later
date, we feel the existing road sections will accommodate the
flow of traffic.
CONCLUSIONS
Based on thispreliminary study, we feel the proposed development
will not have a detrimental impact upon present traffic
conditions. If future conditions warrant a traffic signal, we
feel the curb cuts are an adequate distance from the intersection
based on the number of vehicles making turning movements.
Pre
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Todd A. nimoda, P.E. 0 w
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SUMMARY OF TRIP GENERATION RATES
Land Use/Building Type Special i •y R ta; 1 C n .Pr ITE Land Use Code R1 4
Independent Variable —Trips per 1,D00 Grass Square Feet of Teasahle Area
Average
Trip
Rate
Maximum
Rate
Minimum
Rate
Correlation
Coefficient
Number
of
Studies
Average Size of
Independent
Variable/Study
Average Weekday Vehicle Trip Ends
40. 7
50.921.
2 7.7
Peak
Hour
of
Adjacent
Street
Traffic
A.M.
Between
7 and 9
Enter
Exit
Total
P.M.
Between
4 and 6
Enter
Exit
Total
Peak
Hour
of
Generator
A.M.
Enter
Exit
Total
P.M.
Enter
Exit
Total
Saturday Vehicle Trip Ends
Peak
Hour of
Generator
Enter
Exit
Total
Sunday Vehicle Trip Ends
Peak
Hour of
Generator
Enter
Exit
Total
Source Numbers 100
ITE Technical Committee 6A-6—Trip Generation Rates
Date: 1982
'F� 6 L� V-F- b
L
SUMMARY OF TRIP GENERATION RATES
Land Use/Building Type 24—Hour Open Convenience Market ITE Land Use Code _851
Independent Variable —Trips per 10000 Gross Square Feet
Average
Trip
Rate
Maximum
Rate
Minimum
Rate
Correlation
Coefficient
Number
of
Studies
Average Size of
Independent
Variable/Study
Average Weekday Vehicle Trip Ends
Peak
Hour
of
A.M.
Between
7 and 9
Enter
Exit
Total
Adjacent
Street
Traffic
P.M.
Between
4 and 6
Enter
Exit
Total
Peak
Hour
Of
Generator
A.M.
Enter
Exit
Total
P.M.
Enter
Exit
Total
Saturday Vehicle Trip Ends
Peak
Hour of
Generator
Enter
Exit
Total
Sunday Vehicle Trip Ends
Peak
Hour of
Generator
Enter
Exit
Total
Source Numbers 78, 87, 90
ITE Technical Committee 6A-6—Trip Generation Rates
Date: 1975, Rev. 1982
�IG�IIZE