HomeMy WebLinkAboutFIRST ASSEMBLY OF GOD PUD - PRELIMINARY - 1-97 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDYVI. RECOMMENDATIONS
This study assessed the transportation impacts of the proposed
First Assembly of God development, consisting of a church having
100,000 square feet in Phase 1. Phase 2 will expand the church to
175,000 square feet, and include a day care, an assisted living
facility, and a private school. Phase 1 is expected to generate
930 vehicle trip ends on an average weekday, with Phase 2
increasing the number of weekday trips to 3025. Phase 2 is
expected to be fully built by the year 2015.
With development of Phase 1, the driveway intersections with
Timberline Road will operate acceptably with stop sign control.
In the long range future, both site driveways to Timberline Road
will continue to operate acceptably, except for minor street left -
turn movements from the south driveway to Timberline will operate
at level of service F. This is normal in urban areas under peak
hour conditions. The recommended short range and long range
geometry is shown on Figures 11 and 12, respectively.
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14
Table 2
Short Range Peak Hour Operation
Level of Service
Intersection AM PM
Timberline/North Driveway (stop sign)
WB LT D C
WB RT A A
SB LT B A
Timberline/South Driveway (stop sign)
WB LT D C
WB RT A A
SB LT B A
Table 3
Long Range Peak Hour Operation
Level of Service
Intersection AM PM
Timberline/North Driveway (stop sign)
WB LT D C
WB RT A A
SB LT B A
Timberline/South Driveway (stop sign)
WB LT F D
WB RT A A
SB LT B A
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V. TRANSPORTATION IMPACTS
Key intersections were analyzed using the unsignalized
analysis techniques as published in the "Highway Capacity Manual,"
Special Report 209, TRB, 1994.
Table 2 shows the level of service analysis using the 1998
morning and afternoon peak hour traffic. Calculation forms are
provided in Appendix B. The site driveway intersections with
Timberline Road will operate acceptably. Acceptable operation is
defined as level of service D or better. In the short range
future, it is expected that the existing roadway section to the
south of the site on Timberline Road will be extended to the north.
This will provide two travel lanes in each direction plus a center
left -turn lane. Additional turn lanes are not required in the
short range future.
Table 3 shows the level of service at the driveway
intersections in the long range future. Calculation forms are
provided in Appendix C. With stop sign control, the Timberline/
site driveway intersections will operate acceptably, except for
exiting left turns at the south access intersection during the
morning peak hour. Delay associated with level of service F
operation is common and is generally accepted at stop sign
controlled intersections on arterial streets in urban areas. Short
and long range future geometrics at key intersections are shown on
Figures 11 and 12, respectively. This is compatible with the
geometrics shown in other traffic studies and as indicated in
various city plans for Timberline Road.
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IV. TRAFFIC VOLUMES AND TRIP ASSIGNMENT
Current morning and afternoon peak hour traffic was obtained
' on November 12, 1996, at the Timberline/Sagebrush intersection.
Raw count data is provided in Appendix A. The traffic count is
shown in Figure 4.
Trip Assignment
The trip assignment is the product of the trip generation and
trip distribution process. Both short range and long range trip
assignments were performed.
Figure 5 shows the short range site generated trip assignment.
Long range site generated traffic, representing build out of the
church property is shown on Figure 6. The site generated traffic
was combined with the background traffic to determine the total
traffic at the key intersections. Background traffic was
determined by factoring the through traffic on Timberline Road by
2-3% per year to determine a 1998 condition representing the short
range future. This factor was determined based upon traffic
projections used in numerous traffic studies for nearby
developments. Long range background traffic was estimated using
the same annual growth rates expanded to the year 2015. The
background traffic is presented on Figures 7 and 8 for short range
and long range evaluation periods, respectively. Total traffic,
the combination of site and background traffic, is shown in Figure
9 for the short range future and Figure 10 for the long range
future.
7
TRIP DISTRIBUTION
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Figure 3
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III. TRIP DISTRIBUTION
The overall directional distribution of the site generated
traffic was based upon the existing travel patterns in the area and
in consideration of trip attractions and productions in the Fort
Collins area. Typical trip productions for the proposed land uses
are residential uses. Trip distribution was developed and rounded
to the nearest 5 percent as shown in Figure 3.
5
II. TRIP GENERATION AND DESIGN HOURLY VOLUMES
Trip generation was estimated using Trip Generation, 5th
Edition, ITE and the 1995 Update to this publication. Table 1
shows the daily and peak hour trip generation for each phase of the
church and related uses. A trip is defined as a one way vehicle
movement from origin to destination. The origin or destination of
a generated trip would be within the church property. For
evaluation purposes, estimated sizes for the assisted living, day
care, and private school portions of the site were developed based
upon conversations with the project architect/site planner.
Table 1
Trip Generation
Daily
A.M.
Peak
P.M.
Peak
Land Use
Trips
Trips
Trips
Trips
Trips
in
out
in
out
PHASE 1
Church - 100 KSF
930
47
27
39
33
PHASE 2
Church - 75 KSF
700
36
20
30
26
Day Care - 100 students
465
43
38
40
45
Assisted Living Care -
430
7
5
19
15
200 DU
Private School - 150
500
88
52
7
14
students
TOTAL
3025
221
142
135
133
4
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SITE PLAN Figure 2
3
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I. INTRODUCTION
This traffic study for the First Assembly of God church
addresses the capacity, geometric, and traffic control requirements
associated with this proposed development, east of Timberline Road,
approximately midway between Horsetooth Road and Drake Road in Fort
Collins, Colorado. The site location is shown in Figure 1.
Existing and Proposed Site Uses
The land for this development is currently vacant. The
applicant is ro osing to construct a 100,000 square foot church
in Phase 1 (1-998) and an additional 75,000 square foot expansion
of the church, a day care center, an assisted living facility, and
a private school in a later phase at an unspecified future time.
It is assumed that both phases will be fully built by the year
2015. The land in the area is flat. Figure 2 shows a site plan
for the First Assembly of God facility.
Site Access
Access is proposed via two driveways to Timberline Road. Both
driveways are planned as full movement access points and are
anticipated in conjunction with the first phase of development.
Both will have two outbound lanes, one for left turns and one for
right turns, and will be stop sign controlled.
Existing Land Uses
Land uses in the vicinity of the First Assembly of God are
predominantly light industrial, office, residential or vacant.
There is vacant land to the north, south, and east of the site with
the parcel to the south owned by Colorado State University.
Directly to the west, single family residential development exists.
Fort Collins High School is located about one-half mile to the
south of the church site. There are light industrial uses to the
south on the west side of Timberline Road.
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FIRST ASSEMBLY OF GOD
SITE ACCESS STUDY
FORT COLLINS, COLORADO
'
JANUARY 1997
Prepared for:
First Assembly of God
1800 South Lemay Avenue
'
Fort Collins, CO 80525
1
Prepared by:
MATTHEW J. DELICH, P.E.
2272 Glen Haven Drive
'
Loveland, CO 80538
Phone: 970-669-2061
FAX: 970-669-5034