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Home My WebLink About20240975 3-11 Maple Dell Stewart's Subdivision Traffic LetterFebruary 10, 2022 Updated September20, 2024 Mr. Chuck Marshal Stewart’s Shops P.O. Box 435 Saratoga Springs, NY 12866 RE: Trip Generation Assessment, Stewart’s Shop, City of Saratoga Springs, Saratoga County, New York; CM Project No. 121-044 Dear Mr. Marshall: Creighton Manning (CM) has completed an updated trip generation assessment for the proposed relocation of an existing Stewart’s Shop located at 15 Maple Dell to 33 Marion Avenue in the City of Saratoga Springs. This evaluation is based on information provided in the updated “Proposed Site Plan,” prepared by Stewart’s Shops last revised May 6, 2024 included under Attachment A. This letter is an update to the previous traffic study conducted by CM (last revised in February 2022) which included the relocation of the existing Stewart’s Shop and adjacent liquor store to 33 Marion Avenue. The Saratoga Springs Planning Board requested an update to this letter due to potential impacts on the previous data collection effort from the covid pandemic. 1.0 Project Description The proposed project consists of the construction of a 4,500 square foot (SF) Stewart’s Shop convenience market with 12 fueling positions and a 3,000 SF commercial space (anticipated East Side Wine and Spirits liquor store) at 33 Marion Avenue. This will replace the existing 1,972 SF Mobil Gas Station and service center that currently has 12 fueling positions and the existing 2,872 SF Clean2O car wash that has two self-service bays and one automated bay. It is anticipated that the existing Stewart’s Shop and East Side Wine and Spirits liquor store will relocate to the proposed site on Marion Avenue. The current parcel currently provides four driveways on Marion Avenue; however, the project includes removing these driveways and constructing two new, full access driveways on the east side of Marion Avenue approximately 150-feet and 500-feet north of Maple Dell. Under the current site plan, the Goodemote Physical Therapy building located at 3 Maple Dell will buy the subdivided parcel at 11-15 Maple Dell (existing Stewart’s Shops/liquor store parcel) and use the existing building for their practice. In addition, the existing Clean2O car wash will relocate to 3 Maple Dell (existing Goodemote Physical Therapy parcel) and will offer one automatic bay. The generalized study area is shown on Figure 1 while the proposed development plan is summarized on Table 1. Existing: Stewart’s, Liquor Store Proposed: Medical Office Existing: Medical Office Proposed: Car Wash Existing: Mobil Gas Station, Car Wash Proposed: Stewart’s, Liquor Store Figure 1 –Project Location 11-15 3 31 33 Mr. Chuck Marshall Updated September 20 2024 Page 2 of 5 Table 1 –Development Plan Summary Land Use Existing Conditions Proposed Conditions Location Size Location Size Stewart’s Shop 15 Maple Dell 2,700 SF 33 Marion Ave. 4,500 SF 12 Fueling Positions East Side Wine and Spirits Liquor Store 11 Maple Dell 2,000 SF 33 Marion Ave. 3,000 SF Goodemote Physical Therapy Office 3 Maple Dell 1,216 SF 11-15 Maple Dell 4,700 SF Mobil Gas Station 33 Marion Ave. 1,972 SF 12 Fueling Positions -- -- Clean2O Car Wash 31 Marion Ave. 2 self-service bays, 1 automated bay 3 Maple Dell 1 automated bay 2.0 Existing Driveway Counts Existing Conditions Summary Trip generation determines the quantity of traffic expected to travel to/from a given site. Trip generation data was collected at the existing Stewart’s Shop convenience market, the East Side Wine and Spirits liquor store, and the Goodemote Physical Therapy building located on Maple Dell during the AM and PM peak hours on Thursday, August 15, 2024. In addition, trip generation data was collected for the existing Mobil Gas Station and the Clean2O car wash on Marion Avenue at the same time. A summary of the existing trip generation for the land uses on Maple Dell and Marion Avenue is included on Table 2. Table 2 – Existing Trip Generation Summary Land Use Size AM Peak Hour PM Peak Hour Enter Exit Total Rate Enter Exit Total Rate 3-15Maple DellGoodemote Physical Therapy Office 1,216 SF 3 1 4 3.29 5 8 13 10.69 Stewart’s Shop 2,700 SF 59 60 119 -- 37 25 62 -- Stewarts Pass-By Trips (50% AM/PM)-30 -30 -60 -- -15 -15 -30 -- East Side Wine and Spirits 2,000 SF -- -- -- -- 24 22 46 23.00 Total Primary Trips 11-15 Maple Dell 32 31 63 -- 51 40 91 -- 33 Marion AvenueMobil Gas Station 1,972 SF 29 33 62 -- 38 33 71 -- Mobil Gas Pass-By Trips (60% AM/65% PM)-18 -18 -36 -- -23 -23 -46 -- Clean2O Car Wash 3 Bays 3 7 10 3.33 0 6 6 2.00 Total Primary Trips 33 Marion Avenue 14 22 36 -- 15 16 31 -- Total Trips 94 101 195 -- 104 94 198 -- Total Pass-By Trips -48 -48 -96 -- -38 -38 -76 -- Total Primary Trips 46 53 99 -- 66 56 122 -- Table 2 indicates that the land uses on Maple Dell and Marion Avenue currently generate 195 total AM peak hour trips and 198 total PM peak hour trips. 3.0 Future Conditions Summary Future Trip Generation Summary – 33 Marion Avenue The Institute of Transportation Engineers (ITE) Trip Generation, 11th 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 new Stewart’s Shop was estimated using land use code (LUC) 945 for a Convenience Store/Gas Station (GFA 4 – 5.5KSF) with 12 vehicle fueling positions. The existing 2,000 SF liquor store does not generate traffic during the AM peak hour; however, it generates 23 trips per 1,000 SF (KSF) during the PM peak hour. The Mr. Chuck Marshall Updated September 20 2024 Page 3 of 5 trip generation estimate for the new 3,000 SF commercial space located at 33 Marion Avenue is based on this observed trip rate since it is assumed that the liquor store will relocate into this larger space. The observed trip rates for the physical therapy office were 3.29 and 10.69 trips per KSF during the AM and PM peak hours, respectively. In addition, the observed trip rates for the Clean2O car wash were 3.33 and 2.00 trips per bay during the AM and PM peak hours, respectively. It is noted that the construction of the proposed Stewart’s Shop will replace the existing Mobil Gas Station and car wash into a new store with the liquor store space; therefore, the existing trips for the Mobil were removed from the total trip generation of the site. Additionally, the existing trips at the Clean2O car wash were moved to 3 Maple Dell. Although the car wash will be reduced from one automated bay and two self-service bays to a single automated bay, all trips were relocated to this parcel in order to provide a worst-case assessment. Trips from the physical therapy office were increased based on the observed trip rate due to the increase in building size from 1,216 SF to 4,700 SF at its new location at 11-15 Maple Dell (in existing Stewart’s and East Side Liquors building). It can be expected that some trips to the gas station/convenience store originate from traffic that is already passing the site on Marion Avenue. Pass-by trips are vehicles that will stop at the site before continuing on to their primary destination. For example, a driver traveling northbound on Marion Avenue leaving work may stop at the convenience store and then continue northbound towards home. This type of trip is considered a pass-by trip. Based on a review of data published by ITE, a pass-by trip percentage of 60% to 65% was applied to trips generated by the proposed gas station/convenience store, as well as the existing Mobil gas station. It is anticipated that trips generated by the liquor store could also be reduced by a pass-by credit; however, ITE does not provide pass-by credits for this type of land use. In order to provide a conservative assessment, a pass-by credit was not applied to the liquor store/commercial space. A summary of the trip generation at 33 Marion Avenue is shown in Table 3. Table 3 – Future Trip Generation Summary – 33 Marion Avenue Table 3 indicates that the proposed development will generate 66 new primary trips to 33 Marion Avenue during the AM peak hour and 123 new primary trips during the PM peak hour. Land Use Size AM Peak Hour PM Peak Hour Enter Exit Total Enter Exit Total Existing TripsExisting 33 Marion Avenue Existing Mobil Gas Station 1,972 SF 29 33 62 38 33 71 Mobil Pass-By Trips (60% AM/65% PM)-18 -18 -36 -23 -23 -46 Clean2O Car Wash 3 Bays 3 7 10 0 6 6 Total 33 Marion Avenue 32 40 72 38 39 77 Total Pass-By Trips 33 Marion Avenue -18 -18 -36 -23 -23 -46 Total Primary Trips 33 Marion Avenue 14 22 36 15 16 31 Proposed Trips/Relocated TripsProposed 33 Marion Avenue Proposed Stewart’s Shop (LUC 945)4,500 SF 127 127 254 123 122 245 Pass-By Trips (60% AM/65% PM)-76 -76 -152 -80 -80 -160 New Primary Stewart’s Shop Trips 51 51 102 43 42 85 Proposed Liquor Store 3,000 SF 0 0 0 36 33 69 Total Proposed Trips 33 Marion Avenue 127 127 254 159 155 314 Total Proposed Pass-By Trips 33 Marion Avenue -76 -76 -152 -80 -80 -160 Total Proposed Primary Trips 33 Marion Avenue 51 51 102 79 75 154 DeltaTotal New Trips on Marion Avenue +95 +87 +182 +121 +116 +237 Total Pass-By Trips on Marion Avenue -58 -58 -116 -57 -57 -114 Total New Primary Trips on Marion Avenue +37 +29 +66 +64 +59 +123 Mr. Chuck Marshall Updated September 20 2024 Page 4 of 5 Future Trip Generation Summary – 3-15 Maple Dell A similar exercise was conducted to illustrate the change in trip generation for the 3-15 Maple Dell parcel given the relocation of the other land uses as part of the project. Trip generation at 3-15 Maple Dell is summarized in Table 4. Table 4 – Future Trip Generation Summary – 3-15 Maple Dell Table 4 indicates that the proposed project will generate 98 fewer trips to 3-15 Maple Dell during the AM peak hour and 65 fewer trips during the PM peak hour. It is noted that approximately 70% of traffic generated by the parcels on Maple Dell access the sites from the east via Marion Avenue (US Route 9) while the remaining 30% of site generated trips access the sites from the northwest via Maple Dell and Maple Avenue. This indicates that traffic on Maple Dell traveling to and from the Marion Avenue (US Route 9) intersection located east of the site will decrease by approximately 69 trips during the AM peak hour and approximately 45 trips during the PM peak hour. It is noted that the unsignalized Maple Dell intersection on Marion Avenue (US Route 9) is located approximately 100-feet north of the NY Route 50 intersection and that vehicle queues from this existing traffic signal impacts operations at the Maple Dell intersection; therefore, reducing traffic to the parcels on Maple Dell will minimize stacking at this unsignalized intersection which will improve overall operations. Overall Trip Generation Summary Table 5 provides an executive summary that shows the number of new trips to the whole project area. Land Use Size AM Peak Hour PM Peak Hour Enter Exit Total Enter Exit Total Existing TripsExisting 3-15 Maple Dell Goodemote Physical Therapy Office 1,216 SF 3 1 4 5 8 13 Stewart’s Shop 2,700 SF 59 60 119 37 25 62 Existing Stewarts Pass-By Trips (50% AM/PM)-30 -30 -60 -15 -15 -30 East Side Wine and Spirits 2,000 SF -- -- -- 24 22 46 Total 3-15 Maple Dell 62 61 123 66 55 121 Total Pass-By Trips 3-15 Maple Dell -30 -30 -60 -15 -15 -30 Total Primary Trips 3-15 Maple Dell 32 31 63 51 40 91 Proposed Trips/Relocated TripsProposed 3-15 Maple Dell Proposed Goodemote Physical Therapy Office 4,700 SF 11 4 15 19 31 50 Proposed Clean2O Car Wash 1 bay 3 7 10 0 6 6 Total Proposed Trips 3-15 Maple Dell 14 11 25 19 37 56 Delta Total Trips at 3-15 Maple Dell -48 -50 -98 -47 -18 -65 Mr. Chuck Marshall Updated September 20 2024 Page 5 of 5 Table 5 – Trip Generation Summary to Project Area Land Use AM Peak Hour PM Peak Hour Enter Exit Total Enter Exit Total Existing Trips (Maple Dell and Marion Avenue)Total Trips 94 101 195 104 94 198 Total Pass-By Trips -48 -48 -96 -38 -38 -76 Total Primary Trips 46 53 99 66 56 122 Proposed Project Trips/Relocated Trips Total Trips to 33 Marion Avenue 127 127 254 159 155 314 Total Pass-By Trips to 33 Marion Avenue -76 -76 -152 -80 -80 -160 Total Primary Trips to 33 Marion Avenue 51 51 102 79 75 154 Total Trips to 3-15 Maple Dell 14 11 25 19 37 56 DeltaTotal New Trips to Project Area 47 37 84 74 98 172 Total New Pass-By Trips to Project Area -28 -28 -56 -42 -42 -84 Total New Primary Trips to Project Area 19 9 28 32 56 88 Table 5 indicates that the proposed project will generate 28 new primary trips to the project area during the AM peak hour and 88 new primary trips to the project area during the PM peak hour. 4.0 Conclusions The trip generation analysis indicates that relocation and reconstruction of the uses between 3-15 Maple Dell and 33 Marion Avenue as described in this assessment will generate 28 new primary trips during the AM peak hour and 88 new primary trips during the PM peak hour to the project area. If you have any questions regarding the above trip generation assessment, please feel free to contact our office. Respectfully submitted, Creighton Manning Mark D. Nadolny Associate Attachments N:\Projects\2021\121-044 Stewarts - Marion Ave Saratoga\Working\Traffic\Reports\2024 Update\20240920_trip gen ltr_121044.docx Attachment A Proposed Site Plan Stewart’s Shop – Marion Avenue City of Saratoga Springs, New York