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HomeMy WebLinkAboutReports - Traffic Study - 09/23/2025kimley-horn.com 3325 South Timberline Road, Suite 130, Fort Collins, CO 80525 970 822 7911 September 23, 2025 Ms. Brittany Sikorski QuikTrip Corporation 12000 Washington Street, Suite 175 Thornton, Colorado 80241 Re:QuikTrip 4301 - Traffic Compliance Letter Fort Collins, Colorado Dear Mr. Byler, This letter has been prepared to document a trip generation comparison for the proposed QuikTrip convenience store and gas station project located on Lots 1 and 2 of the overall development situated within the southwest quadrant of the Drake Road and College Avenue intersection in Fort Collins, Colorado. The overall development, including Lots 1 and 2, was evaluated in the SWC Drake and College Traffic Impact Study prepared in March 2025. Applicable documents from the original overall traffic study, and a conceptual site plan for the proposed QuikTrip, are provided as attachments. SITE INFORMATION The proposed QuikTrip project site sits on Lots 1 and 2, representing approximately 2.33 acres of the 6.28 acre overall development. The entire overall development is currently zoned as a General Commercial District. The proposed QuikTrip features a convenience store, approximately 6,500 square feet in size, with 16 vehicle fueling vehicle fueling positions. The proposed QuikTrip also features approximately 32 parking stalls, three of which will be designated for handicap parking. Regional access to the site will be provided by Interstate 25 (I-25) and College Avenue, also designated as United States Highway 287 (US-287). Primary access will be provided by Drake Road and College Avenue (US-287). Direct access will be provided by two proposed full movement project accesses located along the east side of the planned internal private access roadway that runs north/south and is currently designated as Private Drive B. TRIP GENERATION COMPARISON Site-generated traffic estimates are determined through a process known as trip generation. The most common practice for the trip generation process is to utilize rates and equations that are based on land use type to estimate traffic generated by a development during a specific time interval. The acknowledged industry source for trip generation rates and equations is the Trip Generation Manual1 published by the Institute of Transportation Engineers (ITE). ITE has developed trip rates and equations based on nationwide studies. Since the proposed QuikTrip is anticipated to occupy both Lots 1 and 2 of the overall development, the trips anticipated to be generated by the proposed QuikTrip were compared to the combined total estimates for Lots 1 and 2 documented in the original overall traffic study. The original overall traffic study previously assumed Lot 1 would house a convenience store larger than 5,500 square feet with a gas station featuring 16 vehicle fueling positions (ITE Land Use Code 945), while Lot 2 was assumed to house a 4,000 square foot bank with a drive through (ITE 912). As such, the overall traffic study anticipated that together Lots 1 and 2 would generate approximately 5,934 weekday daily trips with 546 of these trips occurring during the morning peak hour and 514 of these trips occurring during the afternoon peak hour. 1 Institute of Transportation Engineers,Trip Generation Manual, Eleventh Edition, Washington DC, 2021. Ms. Sikorski, QuikTrip 4301 096888057 Page 2 kimley-horn.com 3325 South Timberline Road, Suite 130, Fort Collins, CO 80525 970 822 7911 In addition, the original overall traffic study assumed both internal capture and pass-by adjustments were applicable, given the nature of these land uses as well as their relationship with the other land uses within the overall development. After considering both internal capture and pass-by adjustments, the overall traffic study anticipated that together Lots 1 and 2 would generate approximately 1,558 external non-pass-by weekday daily trips, with 145 of these trips occurring during the morning peak hour and 153 of these trips occurring during the afternoon peak hour. The table provided below summarizes the estimated trip generation for traffic associated with the previous study. To calculate the anticipated traffic associated with the proposed QuikTrip, Kimley-Horn utilized the ITE Trip Generation Manual average rates that apply to Convenience Store/Gas Station (ITE 945). Based on ITE Trip Generation calculations, the proposed QuikTrip is expected to generate approximately 5,532 weekday daily trips, with 506 of these trips occurring during the morning peak hour and 430 of these trips occurring during the afternoon peak hour. As was assumed in the original overall traffic study, internal capture and pass-by adjustments were assumed to be applicable for the proposed QuikTrip. After considering both internal capture and pass-by adjustments, the proposed QuikTrip is expected to generate approximately 1,727 external non-pass-by weekday daily trips, with 120 of these trips occurring during the morning peak hour and 98 of these trips occurring during the afternoon peak hour. The table provided below summarizes the estimated trip generation for traffic associated with the proposed QuikTrip, a trip generation calculation worksheet is also provided as an attachment. SWC Drake/College Lots 1 & 2 Traffic Generation Comparison Land Use and Size Weekday Vehicles Trips Daily AM Peak Hour PM Peak Hour In Out Total In Out Total Previous Study – SWC Drake & College Traffic Impact Study Lots 1 & 2 Drive-In Bank (ITE 912) – 4,000 Square Feet 402 23 17 40 42 42 84 Convenience Store/Gas Station (ITE 945) – 16 Vehicle Fueling Positions 5,532 253 253 506 215 215 430 Total Trips 5,934 276 270 546 257 257 514 Total External Non-Pass-By Trips After Internal Capture and Pass-By Reductions 1,558 76 69 145 77 76 153 Current Proposal – QuikTrip (Lots 1 & 2) Convenience Store/Gas Station (ITE 945) – 16 Vehicle Fueling Positions 5,532 253 253 506 215 215 430 Internal Capture Reductions 2% AM &8% PM1 -443 -5 -5 -10 -17 -17 -34 Total Driveway Trips After Internal Capture Reduction 5,089 248 248 496 198 198 396 Pass-By Reductions 76%AM &75% PM2 -3,817 -188 -188 -376 -149 -149 -298 Total External Non-Pass-By Trips After Internal Capture and Pass-By Reductions 1,272 60 60 120 49 49 98 Net Difference in Total External Non-Pass-By Trips -286 -16 -9 -25 -28 -27 -55 1 – Internal Capture Reduction Rate Limits as defined by CDOT in the State Highway Access Code 2 – Pass-By Reduction Rates as defined by ITE in the Trip Generation Manual, 11th Edition QuikTrip 4301 096888057 Page 3 kimley-horn.com 3325 South Timberline Road, Suite 130, Fort Collins, CO 80525 970 822 7911 As shown in the table provided on the previous page, the proposed QuikTrip is expected to generate 286 fewer external non-pass-by weekday daily trips, with 25 fewer morning peak hour trips and 55 fewer afternoon peak hour trips when compared to the same development area considered in the original traffic study. Section 4.2.3 of the 2021 Larimer County Urban Area Street Standards (LCUASS) states that a revision or update to an approved TIS may be required when a previously approved land use proposes a change in use where new trip generation estimates exceed the original trip generation estimates by 20 percent, or by more than 20 peak hour trips, whichever is less. Based on the anticipated reduction in weekday daily trips, as well as the anticipated reduction in morning and afternoon peak hour trips, it is believed that the proposed QuikTrip is in traffic compliance with the original overall SWC Drake and College Traffic Impact Study dated March 2025. Therefore, no additional traffic analysis is anticipated to be required. PLANNED OVERALL TRAFFIC IMPACT STUDY IMPROVEMENTS The original overall SWC Drake and College Traffic Impact Study assumed that the overall development would construct two internal private access roadways, featuring three access points to existing public roadways. The three proposed access points included a right-in/right-out access along the south side of Drake Road, a right-in/right-out access along the west side of College Avenue (US- 287), and a full movement access along the north side of Thunderbird Drive. All three of these proposed access points were recommended to operate with stop control on the approaches exiting the development. None of these access points have been constructed yet; however, the Drake Road and College Avenue (US-287) accesses are anticipated to be constructed as part of the proposed project to provide access to the proposed QuikTrip. In addition, the original overall traffic study anticipated improvements to the center median along Drake Road, including a combination of flexible delineators, pavement marking, and signing to be constructed to restrict turning movements at the proposed Drake Road access. It is recommended that these improvements be constructed as part of this proposed project, if they have not yet been. At the time the overall SWC Drake and College Traffic Impact Study was prepared, the City of Fort Collins was considering geometric improvements for the intersection of Drake Road and College Avenue (US-287). While 30 percent preliminary design plans were available, the timeline for construction of these improvements was not known. These improvements have not yet been constructed; however, they are not anticipated to be the responsibility of this proposed project. QuikTrip 4301 096888057 Page 4 kimley-horn.com 3325 South Timberline Road, Suite 130, Fort Collins, CO 80525 970 822 7911 CONCLUSIONS AND RECOMMENDATIONS Based on the results of the trip generation comparison presented in this report, Kimley-Horn and Associates, Inc. believes that the proposed QuikTrip is in compliance with the overall SWC Drake and College Traffic Impact Study, dated March 2025. It is believed that all potential operational traffic impacts associated with the proposed project have been previously addressed within the original overall traffic impact study, and no additional traffic analysis is anticipated to be required. If you have any questions or need further assistance, please don’t hesitate to contact me at (970) 880-1176. Sincerely, KIMLEY-HORN AND ASSOCIATES, INC. Erick W. Berry, P.E., PTOE, RSP1 Project Traffic Engineer 09/23/2025 kimley-horn.com 3325 South Timberline Road, Suite 130, Fort Collins, CO 80525 970 822 7911 Conceptual Site Plan 43 0 1 We s t D r a k e & S o u t h C o l l e g e Fo r t C o l l i n s , C O 096888057 P-123 001 Qu i k T r i p N o . A SHEET TITLE: SHEET NUMBER: DIVISION: DESIGNED BY: 1 © COPYRIGHT QUIKTRIP CORPORATION 2011 ANY UNAUTHORIZED USE, REPRODUCTION, PUBLICATION, DISTRIBUTION, OR SALE IN WHOLE OR IN PART, IS STRICTLY FORBIDDEN. OR I G I N A L I S S U E D A T E : PROTOTYPE: VERSION: PROJECT NO.: DRAWN BY: REVIEWED BY: RE V DA T E DE S C R I P T I O N B C D E F G H J K L M N P Q A B C D E F G H J K L M N P Q 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 INITIAL SITE PLAN 01 09 / 2 3 / 2 0 2 5 AIA BSF JPW FOR REVIEW ONLY NOT FOR Kimley-Horn and Associates, Inc. CONSTRUCTION SITE LEGEND N 20 10 0 20 40 ELEC VAULT F.O. ELEC VAULT F.O. VAULT F.O. TRAFFIC VAULT T S ELECT ELEC C VAULT ELEC G G G G G G G G G G G G G S > > > > > > > > > SU B M E R G E D PU M P AN N U L A R SU B M E R G E D PU M P AN N U L A R SU B M E R G E D PU M P AN N U L A R SU B M E R G E D PU M P AN N U L A R VE N T / VA P O R VE N T / VA P O R VE N T / VA P O R VE N T / VA P O R PR O B E SU B M E R G E D PU M P AN N U L A R VE N T / VA P O R FI L L PR O B E FI L L PR O B E FI L L PR O B E FI L L PR O B E FI L L G4 P-123 STORE NO.: 4301 6,455 S.F. BLDG. HT = 20'-0" kimley-horn.com 3325 South Timberline Road, Suite 130, Fort Collins, CO 80525 970 822 7911 SWC Drake & College Traffic Impact Study Excerpts T R A F F I C I M P A C T S T U D Y SWC Drake and College Fort Collins, Colorado Prepared for Kentro Group 1509 York Street Suite 201 Denver, Colorado 80206 Prepared by Erick W. Berry, PE, PTOE, RSP1 Kimley-Horn and Associates, Inc. 3325 S. Timberline Road Suite 130 Fort Collins, Colorado 80525 (970) 822-7911 March 2025 This document, together with the concepts and designs presented herein, as an instrument of service, is intended only for the specific purpose and client for which it was prepared. Reuse of and improper reliance on this document without written authorization and adaptation by Kimley-Horn and Associates, Inc. shall be without liability to Kimley-Horn and Associates, Inc. 03/26/2025 096315014 SWC Drake & College Page 18 4.0 PROJECT TRAFFIC CHARACTERISTICS 4.1 Trip Generation Site-generated traffic estimates are determined through a process known as trip generation. Rates and equations are applied to the proposed land use to estimate traffic generated by the development during a specific time interval. The acknowledged source for trip generation rates is the Trip Generation Manual1 published by the Institute of Transportation Engineers (ITE). ITE has established trip rates in nationwide studies of similar land uses. For this study, Kimley-Horn used the ITE Trip Generation Report average rates for traffic associated with the development. The following ITE Land Use Codes (LUC) were utilized: · ITE LUC 221, Multifamily Housing (Mid-Rise) · ITE LUC 912, Drive-In Bank · ITE LUC 932, High-Turnover (Sit-Down) Restaurant · ITE LUC 945 Convenience Store/Gas Station Since the full buildout of SWC Drake and College is proposed to contain a mix of uses, internal capture trips are expected to occur on site as well. These internal capture trips are shared trips from vehicles already within the internal street network. These shared trips reduce the number of total external trips and were calculated directly per the ITE procedure. Since the project is a commercial development, pass-by trips are expected. These pass-by trips are vehicles already on the street network that will be attracted to the project site in route to a final destination. The pass-by percentages were obtained from the ITE “Trip Generation Manual”, 11 th Edition for each land use where applicable. 1 Institute of Transportation Engineers,Trip Generation Manual, Eleventh Edition, Washington DC, 2021. 096315014 SWC Drake & College Page 19 The SWC Drake and College project is expected to generate approximately 7,058 weekday daily trips, with 643 of these trips occurring during the morning peak hour and 610 trips occurring during the afternoon peak hour. Accounting for internal capture and pass-by, expected net new (non pass-by) trips to the surrounding street network results is approximately 2,046 weekday daily trips, of which 195 trips and 186 trips are anticipated during the weekday morning and afternoon peak hours, respectively. Calculations were based on the procedure and information provided in the ITE Trip Generation Manual, 11th Edition – Volume 1: User’s Guide and Handbook, 2021. Table 1 summarizes the estimated trip generation for the site. The trip generation worksheets are included in Appendix E. Table 1 – SWC Drake & College Traffic Generation Land Use and Size Weekday Vehicle Trips Daily AM Peak Hour PM Peak Hour In Out Total In Out Total Multifamily Housing (Mid-Rise) (ITE 221) – 100 Dwelling Units 454 9 28 37 24 15 39 Drive-In Bank (ITE 912) – 4,000 Square Feet 402 23 17 40 42 42 84 High-Turnover (Sit-Down) Restaurant (ITE 932) – 6,250 Square Feet 670 33 27 60 35 22 57 Convenience Store/Gas Station (ITE 945) – 16 Vehicle Fueling Positions 5,532 253 253 506 215 215 430 Total Project Trips 7,058 318 325 643 316 294 610 Internal Capture -826 -27 -27 -54 -43 -43 -86 Total Project Driveway Trips after Internal 6,232 291 298 589 273 251 524 Pass-By Reduction -4,186 -200 -194 -394 -174 -164 -338 Total External Non-Pass By Project Trips 2,046 91 104 195 99 87 186 PORTILLO'S RESTAURANT Footprint = ±6,250 s.f. Patio = ±500 s.f. 25 SPACES ~ 65' APPROACH ~ 200' APPROACH 18 SPACES 9 SPACES 1.5 ACRE LOT 1.5 ACRE SITE 1.16 ACRE SITE 45,600SF MF PAD 2.79 AC LOT INTERIOR COURTYARD kimley-horn.com 3325 South Timberline Road, Suite 130, Fort Collins, CO 80525 970 822 7911 Trip Generation Worksheet Project Subject Designed by Date Job No. TRIP GENERATION MANUAL TECHNIQUES ITE Trip Generation Manual 11th Edition, Average Rate Equations Land Use Code - Convenience Store/Gas Station - GFA (5.5-10K) (945) Independent Variable - Vehicle Fueling Positions (X) Vehicle Fueling Positions=16 Positions X =16 T =Average Vehicle Trip Ends Peak Hour of Adjacent Street Traffic, One Hour Between 7 and 9 a.m. (Page 881) Average Weekday Directional Distribution:50%ent.50%exit. T = 31.60 (X)T =506 Average Vehicle Trip Ends T = 31.60 *16 253 entering 253 exiting 253 + =506 Peak Hour of Adjacent Street Traffic, One Hour Between 4 and 6 p.m. (Page 882) Average Weekday Directional Distribution:50%ent.50%exit. T = 26.90 (X)T =430 Average Vehicle Trip Ends T = 26.90 *16.000 215 entering 215 exiting 215 + =430 Weekday (Page 872) Average Weekday Directional Distribution: 50% entering, 50% exiting T = 345.75 (X)T =5532 Average Vehicle Trip Ends T = 345.75 *16.000 2766 entering 2766 exiting 2766 +2766 =5532 253 215 QuikTrip 4301 Site Plan Trip Generation for Gasoline/Service Station with Convenience Market EWB September 16, 2025 096888057