HomeMy WebLinkAboutFOSSIL CREEK OFFICE PARK EAST PUD PRELIMINARY AND FINAL - 52 91B - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDY (2)FOSSIL CREEK OFFICE PARK PUD
SITE ACCESS STUDY
FORT COLLINS, COLORADO
JANUARY 1996
Prepared for:
Lagunitas Fort Collins, Inc.
3307 South College Avenue, Suite 200
Fort Collins, CO 80525
Prepared by:
MATTHEW J. DELICH, P.E.
3413 Banyan Avenue
Loveland, CO 80538
Phone: 970-669-2061
FAX: 970-669-5034
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SITE GENERATED PEAK HOUR TRAFFIC Figure 4
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SHORT RANGE PHASE 2 PLUS VACANT LOT
SITE GENERATED PEAK HOUR TRAFFIC Figure 5
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LONG RANGE FULL DEVELOPMENT
SITE GENERATED PEAK HOUR TRAFFIC Figure 6
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Rounded to the Nearest
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SHORT RANGE TOTAL PEAK HOUR TRAFFIC
WITH PHASE 1 OF FOSSIL CREEK OFFICE PARK Figure_7
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SHORT RANGE TOTAL PEAK HOUR TRAFFIC
WITH PHASE 1 & 2 OF FOSSIL CREEK OFFICE PARK Figure 8
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LONG RANGE PEAK HOUR TRAFFIC Figure 9
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TABLE 3
Short Range Peak Hour Intersection Operation
With Fossil Creek Business Park Phase I Only
Level of Service
Intersection AM PM
College/Fossil Creek B B
TABLE 4
Short Range Peak Hour Intersection Operation
With Fossil Creek Business Park Phase I+II and Other Parcel
Intersection
College/Fossil Creek
Intersection
College/Fossil Creek
TABLE 5
e
Level of Service
AM PM
B B
section Operation
Level of Service
AM PM
C D
levels of service. It should be noted, that as mentioned earlier,
it was assumed that left -turn phases would be in place on College
Avenue.
Using the traffic volumes shown in Figure 8, the College/
Fossil Creek intersection operates in the short range future, with
Phase I and II and other adjacent development, as indicated in
Table 4. Calculation forms for these analyses are provided in
Appendix E. The results of the traffic analysis indicate that this
intersection would operate at acceptable levels during both the
morning and evening peak hours.
Using the traffic volumes shown in Figure 9, the College/
Fossil Creek intersection operates in the long range future as
indicated in Table 5. Calculation forms are provided in Appendix
F. As indicated in Table 5, it is expected that this intersection
would continue to operate at acceptable levels of service during
the peak hours.
V. CONCLUSIONS
This study assessed the traffic impacts of the development of
the Fossil Creek Business Park PUD and other uses on the short
range (1997) and long range (2015) street system in the vicinity
of the proposed development. As a result of this analysis, the
following is concluded:
- The completion of the Fossil Creek Business Park and
neighboring land uses is feasible from a traffic engineering
standpoint. The Fossil Creek Business Park Phase I will generate
approximately 700 trip ends daily, and Phase II will generate
approximately 880 daily trip ends. The adjacent other parcel will
generate 90 trip ends daily.
Based upon current traffic volumes and existing geometry/
control, the College/Fossil Creek intersection generally operates
acceptably, except for sou£hbound left=turns from College to Fossil
Creek. These movements operate at levels of service F during the
afternoon peak hour. It was assumed that this signal would be
modified to include left -turn phasing for College Avenue.
By 1997, given development of Phases I and II of the
proposed Fossil Creek Business Park and the other adjacent parcel,
the College/Fossil Creek intersection is expected to operate at
acceptable levels of service.
- By 2015, with the projected traffic volumes, the
intersection of College/Fossil Creek will operate acceptably.
5
I. INTRODUCTION
This traffic impact study addresses the capacity, geometric,
and control requirements at and near, the proposed Fossil Creek
Office Park PUD (Cameron Office Park). It is proposed to be
located west of South College Avenue across from Fossil Creek
Parkway in Fort Collins, Colorado.
During the course of the analysis, numerous contacts were made
with the project owner (Lagunitas Fort Collins Inc.). Due to
timing of this project, the Fort Collins Transportation Division
could not
guidelines. TThe study involved thehfoilowingtsteps:
- Collect physical, traffic, and development data.
- Perform trip generation, trip distribution, and trip
assignment.
- Determine peak hour traffic volumes.
- Conduct capacity and operational level of service analyses on
key intersections.
The "G.T. Sanders Store PUD, Site Access Study," July 1995, and the
"Huntington Hills Site Access Study," March 1994, were also
reviewed as part of this analysis.
II. EXISTING CONDITIONS
r The location of the Fossil Creek Office Park PUD site is shown
in Figure 1. Since the impact in the short range, as well as, the
long range is of concern, it is important that a thorough
understanding of the existing conditions be presented.
Land Use
In the recent -past; the-C-ity of-Fort_Collins has tended to
grow predominantly to the south. Development along South College
Avenue is expected to continue. This is evidenced by a number of
retail developments (e.g. Webergs Furniture and Tynan Nissan) and
residential developments (e.g. Huntington Hills and Ridgewood
Hills). The center of Fort Collins lies to the north of the Fossil
Creek Office Park PUD site.
The adjacent land uses near the Fossil Creek Office Park PUD
site are as follows: 1) to the west is the Burlington Northern
Railroad track; 2) to the north is the Mill Brothers Landscape and
Nursery; 3) to the east are commercial uses along College Avenue
or vacant land; and 4) to the south is the existing Cameron Park
Office Park.
1
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NO SCALE
HORSETOOTH ROAD
Roads
The primary streets near the Fossil Creek Office Park PUD are
College Avenue and Fossil Creek Parkway. College Avenue is a
north -south street designated as a major arterial on the Fort
Collins Master Street Plan. Its existing cross section in this
area has two 12 foot lanes in each direction. There are designated
left -turn lanes at appropriate locations or two way continuous
left -turn lanes. There are shoulder areas between the. right
through lane and the curb and gutter that serves as a right -turn
auxiliary lane. The posted speed limit is 5.0 mph on College Avenue
in this area. Sight distance is generally not a problem.
Currently, intersections along South College Avenue are signalized
at Harmony Road to the north and Skyway Drive to the south.
According to the "South College Avenue Access Control Plan," a
signal is expected at Fairway Lane in the future.
Fossil Creek Parkway is an east -west street that serves
commercial and residential uses on the east side of College Avenue
and office/commercial uses on the west side of College Avenue. To
the west of College Avenue, Fossil Creek Parkway leads directly
into the Cameron Park Office Park. This is a two-lane roadway.
East of College Avenue, Fossil Creek Parkway provides access to the
residential area known as Fossil Creek Meadows. Fossil Creek
Parkway is a two-lane roadway with a landscaped median. The speed
limit is posted at 25 mph.
Coronado Court is a two lane local street, which will provide
direct access to Phase I of the proposed project. This roadway
connects to the north/south Frontage Road, which parallels College
Avenue. The Frontage Road currently exists north to Coronado Court
and south, just past Cameron Drive. Cameron Drive is a two-lane
local street, which currently serves Cameron Park and would provide
access to Phase II of the proposed project.
Existing Traffic
Weekday morning and afternoon peak hour traffic data was
synthesized based upon traffic count data from 1993. The 1993
through traffic on College Avenue was factored upward by 2 percent
to reflect growth in the last two years. The peak hour turning
movements are shown in Figure 2. All raw traffic data is presented
in Appendix A.
Existing Operation
Using the traffic volumes shown in Figure 2, the College/
Fossil Creek intersection operates as indicated in Table 1.
Calculation forms for these analyses are provided in Appendix B.
Appendix C describes level of service for signalized intersections,
2
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SYNTHESIZED 1995 PEAK HOUR TRAFFIC Figure 2
TABLE 1
1995 Peak Hour Intersection Operation
Level of Service
Intersection AM PM
College/Fossil Creek
Existing phasing B F
With NIS left -turn phasing B B
Land Use
Fossil Creek Office Park
Phase I - 48.8 KSF
Phase II - 61.1 KSF
Additional undeveloped
parcel - 6.1 KSF
TABLE 2
Trip Generation
Daily A.M. Peak P.M. Peak
Trips Trips Trips Trips Trips
in out in out
700
67
12
16
56
860
85
15
20
70
1580
152
27
36
126
90 8 1 2 7
as provided in the 1994 Highway Capacity Manual. As indicated in
Table 1, the intersection is currently operating at acceptable
levels of service during most of the day. Acceptable level of
service is defined as level of service D or better. However, the
intersection operational analysis indicated that, during the
evening peak hour, the southbound left -turn is approaching the need
for a separate left -turn phase. For the future traffic scenarios,
it was assumed that left -turn phasing on College Avenue would be
in place.
III. PROPOSED DEVELOPMENT
The Fossil Creek Office Park PUD is an office park
development, proposed to be located at the west of South College
Avenue across from Fossil Creek Parkway in Fort Collins. Figure
3 shows a schematic of the site plan of the Fossil Creek Office
Park and some adjacent properties. The proposed project would be
completed in two phases: Phase I would consist of 48,800 square
feet of office park use, and Phase II would consist of 61,000
square feet of office park use. As shown on Figure 3, Phase I
would have access from Coronado Court and Phase II from Cameron
Drive.
The potential for growth on another parcel near the project
site was also accounted for. There is currently a vacant parcel
off of the Frontage Road to the south of Phase I. It was assumed
that this could potentially develop as 6,100 square feet of office.
Trip Generation
Trip generation is important in considering the impact of a
development such as this upon the existing and 'proposed street
system. A compilation of trip generation information was prepared
by the Institute of Transportation Engineers and is presented in
trips that would be generated by the proposed uses at this site.
Table 2 shows the expected trip generation on a weekday and a
weekday peak hour basis. The Business Park Code (770) was used to
estimate the trip generation for the Fossil Creek Office Park.
Trip Distribution
Directional distributions were determined for the land uses
considered in thi: study. This distribution considered trip
attractions and productions in the Fort Collins area, and existing
travel patterns in the area. The trip distribution used in the
short range analyses was 75% to/from the north and 25% to/from the
south.. The trip distribution used in the long range analyses was
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SITE PLAN
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Figure 3
70% to/from the north, 25% to/from the south, and 5% to/from the
east.
Trip Assignment
Trip assignment is how the generated and distributed trips are
expected to be loaded on the street system. The assigned trips are
the resultant of the trip distribution process. Figures 4 and 5
show the assignment of the generated trips from Phase I and Phase
II, respectively. Figure 6 shows the long range assignment of the
site generated traffic with full development of all the parcels
considered in this study, given the change in trip distribution
discussed earlier.
Figure 7 shows the morning and afternoon weekday peak hour
traffic from Phase I plus background traffic in the short range
future (1997). Background traffic on College Avenue for 1997 was
determined by factoring the 1995 traffic by 1.7 percent per year.
This factor was determined based upon historic traffic growth and
information contained in the "North Front Range Regional
Transportation Plan," October 1994. Figure 8 shows the short range
future (1997) morning and afternoon weekday peak hour traffic from
the proposed project, both Phase I and II, plus background traffic,
and estimated traffic from the adjacent vacant parcel mentioned
earlier.
Figure 9 shows the morning and afternoon weekday peak hour
traffic in the long range future (2015). Background traffic for
the year 2015 was determined using other traffic studies for
projects in this area and the "North Front Range Regional
Transportation Plan." The forecasts shown in Figure 9 give a
reasonable representation of nearby development. When actual
development proposals are put forth for other properties,
additional traffic studies should be performed.
IV. TRAFFIC IMPACTS AND
Operation Analysis
Capacity analyses were performed on the College/Fossil Creek
intersection, which provides access to the proposed Fossil Creek
Office Park for both the short range (1997) and long range (2015)
traffic conditions.
Using the traffic volumes shown in Figure 7, the College/
Fossil Creek intersection operates in the short range future, with
Phase I, as indicated in Table 3. Calculation forms for these
analyses are provided in Appendix D. As indicated in the table,
it is anticipated that this intersection will operate at acceptable
4