HomeMy WebLinkAbout20210319 120 South Broadway Site Plan Revised Trip Generation Assessment - Creighton Manning 3.9.22 � Cr�i�ht�an
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April 23, 2021
Revised March 9, 2022
Mr. Stephen Ethier
10 East Harrison Street
Saratoga Springs, New York 12866
RE: Trip Generation Assessment, S. Broadway Residential Development, 120 S. Broadway, City of
Saratoga Springs,Saratoga County, New York; CM Project No. 121-098
Dear Mr. Ethier:
Creighton Manning Engineering, LLP (CM) has completed a revised trip generation assessment for the
proposed townhouse/multi-family development at 120 S. Broadway in the City of Saratoga Springs. This
evaluation is based on information provided in the "Site Plan," prepared by Environmental Design
Partnership, LLP updated March 8, 2022 included under Attachment A.This letter supersedes the original
Trip Generation Assessment letter dated April 23, 2021.
1.0 Project Description
The proposed project includes construction of five buildings with 60 total townhouse/multi-family units
on the east side of S. Broadway (US Route 9).The site will remove the existing vacant building previously
occupied by the South Broadway /nn and Spa. The two existing driveways on S. Broadway will be
eliminated and replaced with one full access driveway located near the center of the site.The removal of
a curb cut on S. Broadway(US Route 9) promotes positive access management.
2.0 Existing Conditions
Roadways Servin�the Site
S. Broadway (US Route 9) is classified as principal arterial (other) that generally provides north-south
access through the City of Saratoga Springs. A single lane is provided in the northbound and southbound
directions and a two-way left turn-lane (TWLTL) is also provided adjacent to the project site. Data
published by the New York State Department of Transportation (NYSDOT) in the latest version (2017) of
the Pavement Data Report indicates that the pavement on S. Broadway is in good condition near the
project site. Sidewalks are provided on both sides of the roadway in the project vicinity and the posted
speed limit is 30-mph. The latest available traffic volume data published by NYSDOT shows that S.
Broadway serves approximately 19,500 vehicles per day(vpd) near the site. Land uses along S. Broadway
are primarily commercial and residential.
3.0 Trip Generation Assessment
Trip generation determines the quantity of traffic expected to travel to/from a given site.The Institute of
Transportation Engineers (ITE) Trip Generation, 11`h edition, is the industry standard used for estimating
trip generation for proposed land uses based on data collected at similar uses.The trip generation of the
proposed development was estimated using land use code (LUC) 220 for Multi-Family Low-Rise (filtered
for sites below 800 units) and LUC 221 for Multi-Family Mid-Rise (filtered for sites below 300 units). In
addition,the existing trip generation associated with the South Broadway/nn and Spa was estimated using
land use code (LUC)320 for a Motel to determine how much additional traffic the proposed development
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Mr.Stephen Ethier
Updated March 9,2022
Page 2 of 2
will generate on S. Broadway during the weekday morning and afternoon peak hours.The peak hour trip
generation estimate is summarized in Table 1.
Table 1—Trip Generation Summary
AM Peak Hour PM Peak Hour
Land Use Size
Enter Exit Total Enter Exit Total
Existing South Broadway Inn and Spa 64 Rooms 10 16 26 14 13 27
Proposed Multi-Family Housing Low-Rise(LUC 220) 17 Units 3 12 15 12 8 20
Proposed Multi-Family Housing Mid-Rise(LUC 221) 43 Units 3 9 12 10 6 16
Proposed trips 6 21 27 22 14 36
New Trips -4 +5 +1 +8 +1 +9
The proposed development will generate a total of 27 vehicle trips during the AM peak hour and 36 vehicle
trips during the PM peak hour on the adjacent roadway system.This equates to a one vehicle increase in
site generated traffic during the AM peak hour and a nine vehicle increase in site generated traffic during
the PM peak hour compared to the previously occupied South eroadway Inn and Spa. The magnitude of
the new vehicle trips generated at the site is less than the NYSDOT and ITE threshold of 100 site generated
vehicles on any one intersection approach for needing off-site intersection analysis. This guidance was
developed as a tool to identify locations where the magnitude of traffic generated has the potential to
impact operations at off site intersections and screen out locations from requiring detailed analysis that
do not reach the 100 vehicle threshold indicating that additional detailed off-site intersection analysis is
not needed.
4.0 Trip Generation Conclusions
Based on a review of site generated traffic, it is not anticipated that the proposed development will have
an adverse impact to operations at adjacent intersections on S. Broadway. The trip generation estimate
indicates that this project will result in a net increase of one vehicle during the AM peak hour and a net
increase of nine vehicles during the PM peak hour on the adjacent roadway system. The anticipated
overall trips distributed to the surrounding roadways are below the ITE and NYSDOT 100-vehicle
threshold.
If you have any questions regarding the above trip generation assessment, please feel free to contact our
office.
Respectfully submitted,
Creighton Manning Engineering, LLP
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Mark[]. NadQlny
Asso�iate
Attachments
N:\Projects\2021\121-098 Ethier-S Broadway Residential\Working\Traffic\Reports\20210309_Trip Gen Letter_121-098.docx
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Attachment A
Site Plan
S. Broadway Residential Development
City of Saratoga Springs, New York