HomeMy WebLinkAboutFOOTHILLS MALL REDEVELOPMENT - FDP - FDP130019 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDY (5)March 15, 2013
Mr. Bryan McFarland
Principal – Development
Walton Foothills Holdings VI, LLC
5750 DTC Parkway, Suite 210
Greenwood Village, CO 80111
RE: Foothills Mall Redevelopment Traffic Impact Analysis
Addendum #2
FHU Project Number 12-136-01
Dear Mr. McFarland:
This letter-report serves as the second addendum to the Foothills Mall Redevelopment Traffic
Impact Analysis prepared by Felsburg Holt & Ullevig in December 2012. Recently, the City of Fort
Collins has developed additional comments on the traffic impact study. The following list
summarizes each comment and the detailed response including any supporting information.
TRAFFIC STUDY ASSUMPTIONS
The City of Fort Collins requested that the base traffic study assumptions be included with the
traffic study. Included with this addendum is Figure 1, summarizing the approved traffic study
assumptions.
INTERNAL REDUCTION
The City requested that the base assumptions for the internal trip reduction be included with the
traffic study. Included with this addendum is a copy of the daily and PM peak hour internal trip
reduction calculations. The attached calculations are based on the procedures in the Trip
Generation Manual and reflect land uses (440 unit apartment complex) shown in the original traffic
impact study submitted to the City for review.
Subsequent to the first submittal of the traffic study, the land use assumptions for the proposed
development changed. The number of apartments increased to 800 total units and approximately
88,000 square feet of retail space was added. The same trip reduction procedures were applied to
the updated land uses and the results showed the percentage of internal trips would significantly
increase. Given the intensity of the proposed retail square footage, the commercial uses have the
ability to attract a large percentage of the residential trips that would be generated. The resulting
external trips would be nearly identical to the trip generation estimates for the original land use
assumptions. We determined it would not be appropriate to include the increased internal trip
reduction with the updated traffic impact study. Therefore to provide a conservative (high) estimate
of the external trips in the December 2012 traffic study, the internal trip values from the original
traffic impact study were utilized and applied to the revised trip generation estimates.
March 15, 2013
Mr. Bryan McFarland
Page 2
SHORT TERM BACKGROUNDT RAFFIC SCENARIO
The City requested additional information as to the reason a short term background traffic analysis
was not completed as part of the traffic impact study. The short term background traffic scenario
would analyze the conditions on the transportation network assuming Foothills Mall would not
exist. Traffic currently generated by the Foothills Mall development, even the retail uses that would
continue to remain on-site, would need to be removed from the system at each of the study
intersections. The resulting analysis would show intersections operating at levels of service far
superior to current conditions, providing the basis in determining the overall impact the proposed
redevelopment would have on opening day. Using this artificial condition would not provide a
reasonable comparison to determine the impact additional commercial uses would have on the
transportation network.
With the redevelopment, a significant portion of the existing uses will remain on-site and will
continue to generate traffic. Therefore comparing the opening day traffic to the existing traffic
conditions gives a better representation of the relative impact the new retail uses would have on
the system.
If you have any questions concerning this analysis or need additional information, please feel free
to call (303-721-1440) or email (Jeremy.Hahn@fhueng.com) anytime.
Sincerely,
FELSBURG HOLT & ULLEVIG
Jeremy Hahn, PE, PTOE
Transportation Engineer
Enclosures
Attachment A
Transportation Impact Study Base Assumptions
Figure 1
Foothills Mall Redevelopment Fort Collins, 12-136-01, 3/15/13
NORTH
FELSBURG
HOL T &
ULLEVIG
Intensity: sf
3% 375.3 4% 500.4 9% 1126 11% 1376
15% 0 22% 0 38% 530.1 33% 460.4
Intensity: sf 2% 0 3% 41.85 Intensity: du
0% 0 0% 0
Reduction in External Trips 7.1%
25830
Single-Use Trip Gen Estimate 25020 0 2790 27810
Total 24030 0 1800
12915
Outbound 12050 0 865 12915
Inbound 11980 0 935
Retail Land Use Office Land Use Residential Land Use Total
Demand % 35% 65% Out to External
Net External Trips for Multi-Use Development
865
In from External % #DIV/0! #DIV/0! Demand Balance
0 Total 00 0 0 Total 2,790
Out 000 Out 1,395 530 865
990 1800
In from External
0 In 000 In 1,395 460
Demand Balance Demand Total Internal
935 935
Office Residential
0 0 440
Out to External Total Internal External External
Balance Balance Balance Balance
Demand Demand Demand Demand
Demand Demand Demand Demand
0 0 530 460
24030
In from External % 4% 96%
11,980 Total 25,020 990
12,050 In 12,510 530 11,980
Out 12,510 460 12,050
615,445
Out to External Total Internal External
Foothills Mall Redevelopment
Fort Collins, Colorado
Trip Capture
Daily Trips
Retail
Capture Daily
Intensity: sf
3% 37.17 2% 21.5 9% 96.75 12% 148.7
31% 0 23% 0 53% 48.23 31% 52.39
Intensity: sf 2% 0 2% 3.38 Intensity: du
0% 0 0% 0
Reduction in External Trips 7.8%
2374
Single-Use Trip Gen Estimate 2314 0 260 2574
Total 2214 0 160
1144
Outbound 1187 0 43 1230
Inbound 1027 0 117
Retail Land Use Office Land Use Residential Land Use Total
Demand % 38% 62% Out to External
Net External Trips for Multi-Use Development
43
In from External % #DIV/0! #DIV/0! Demand Balance
0 Total 00 0 0 Total 260
Out 000 Out 91 48 43
100 160
In from External
0 In 000 In 169 52
Demand Balance Demand Total Internal
117 117
Office Residential
0 0 440
Out to External Total Internal External External
Balance Balance Balance Balance
Demand Demand Demand Demand
Demand Demand Demand Demand
0 0 48 52
2214
In from External % 4% 96%
1,027 Total 2,314 100
1,187 In 1,075 48 1,027
Out 1,239 52 1,187
615,445
Out to External Total Internal External
Foothills Mall Redevelopment
Fort Collins, Colorado
Trip Capture
P.M. Peak Hour
Retail
Capture PM