HomeMy WebLinkAboutPROMONTORY - PDP - 32-99 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDY (3)MR175PLA17
N550C/f1TE5, //IC.
Consulting Engineers
August 4, 1999
TP 99totaa.t.ta
Mr. Jon Prouty
Lagunitav Company
3307 S. College Avenue, #200
Fort Collins, CO 80525
Rl:: Addendum to the Traffic Impact Study for the Park Place Project
Dcar Jon:
At your request, TransPlan has conducted a trip generation comparison of the proposed site rises to
the previously analyzed office uses for the Park Place Project. The site is located near the northwest
quadrant of the Troutman Parkway / Boardwalk Drive intersection within the City of Fort Collins.
A full traffic impact study (TIS) was prepared for the proposed project in August 1997 by Matt
Delich.' At the time the TIS was prepared, the proposed site land uses included 55,000 square feet
of general office space, The TIS identified any site related impacts to the surrounding street network
for bath the short tetra (Year 2000) and Ion, term (Year 2015) traffic scenarios.
Since completion of the study, the land use plan for the site has been revised to include a mix of uses
that complement each other, The currently proposed plan involves 30,000 square feet* of general
office and 48 ranch and townhome residential dwelling units.
This trip generation comparison should serve as an addendum analysis to the prior traffic study
prepared for the project, The previous traffic study determined the existing and future street network
and on -site parking will adequately accommodate the minimal traffic increases generated by the
proposed site uses.
Trip Generation Comparison
Based on the above proposed description, the amount of traffic to be generated by the land uses was
determined according to the rates and equations contained in the Institute of Transportation
Engineers (ITE) Trin Generation manual2. The trip generation estimates are contained in Table 1.
It is calculated that the proposed office and residential uses will generate approximately 600 average
daily, 65 A.M. peak hour, and 70 P.M. peak hour trips,
a less likely but maximum pole ntial of4G,200 square feet could he constructor! if building pails eombhm d
High Point Office Park Transportation Im act Study, Mmhow J. Delich, P.E., August 1997.
Trip Cenerltion. Institute of Transportation Engineers, 611 Edition, 1997,
1375 Walnut Street Suite 211 • Boulder, Colorado B0302-5263 Telephone: (303) 442-3130 • Facsimile: (303) 442-3139
TP-99101 High Pointe Development Project - Revised Land Uses 8/4/99
Table 1 - Trin Generation Cmmnarisnn
Land Use
Size
Unit
Multi -Use
Factor
Average Daily Trips
A.M. Peak Hour Trips
P.M. Peak Hour Trips
Rate
Total
In
Out
Rate
Total
In
Out
Rate
Total
In
Out
New and Uses -
Office
Apartment
Condominium / Townhome
30.00
24.00
24.00
1,000 SF
D.U.
D.U.
0.95
0.95
0.95
11.01
6.63
5.86
314
151
134
157
76
67
157
75
67
1.56
0.51
0.44
44
12
10
39
2
2
5
10
8
1.49
0.62
0.54
42
14
12
7
10
8
35
4
4
New Land Use Totals
599
300
299
66
43
23
68
25
43
TIS Land Uses,
Office
55.00
1,000 SF
-
-
910
455
455
-
120
107
13
-
120
20
100
TIS Land Use Totals
910
455
455
120
1071
1201
20
100
Net Difference Between TIS and New Land Uses:
1 -311
-155
-156
1 -54
-64
10]
-52
5
-57
99101tgen.xls - Trip Generation
Mr. Jon Prouty Page 2 August 4, 1999
ht comparison to the original trips estimated for the previous site uses as contained in the site
TIS and shown in Table 1, the currently proposed lazed useplan will generate between 35% and 45%
less traffic than the prior officp land use proposal. The actual net reduction may be lower than this
figure due to the percentage of residents who will both live and work on the site.
Conclusion
The original TIS for the site identified that the adjacent stroct, pedestrian, and bicycle network will
not be adversely affected by the development, and that traffic mitigation measures are not warranted.
Because the revised office and residential land uses proposed for the site will generate considerably
Iower traffic volumes than that contained in the traffic impact study for the site, it is concluded that
the adjacent street network will adequately accommodate the net traffic increases associated with
the development of the new uses.
Please feel free to contact me if you should need additional information or have any questions.
Sincerely,
TransPlan Associates, Inc.
�O-
Jo Ann 1110ins, A.ICP
Senior Plappp f
Attac�Ment: Table , Trip i enerOon Ggnlparison
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