Planning Commission Agenda and Packet 2025 03 13

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King Soopers 142 Louisville, CO I. Introduction Overview This report presents the results of a Traffic Impact Study (TIS) conducted in support of a site plan to redevelop a property with commercial uses consisting of supermarket and gas station uses in Louisville, CO. Currently the site is occupied by a vacant commercial building, previously serving as a home improvement superstore use. Per the requirements of the City of Louisville, a Transportation Impact Study is required to support the proposed redevelopment. Site Location and Study Area The property that comprises the application area for the proposed redevelopment is approximately 13.5 acres in size and is identified as Boulder County Parcel Numbers 157713016001 and 157713016002. It is located south of Centennial Pkwy, north of Dillon Rd, east of Century PI, and west of McCaslin Blvd in Louisville, CO, as shown in Figure 1-1. It is zoned Planned Community Commercial (P-C) and is occupied by a vacant commercial building, previously serving as a home improvement superstore use. Site access is proposed via the existing right-in/right-out (RIRO) access on Centennial Pkwy, full movement access on Centennial Pkwy, '/ movement access on McCaslin Blvd, RIRO access on Dillon Rd, two full movement accesses on Dillon Rd, and two full movement accesses on Century PI. No change in site access is proposed. The Applicant, King Soopers Stores, seeks to redevelop the property with a supermarket and a gas station use. A reduction of the Applicant's proposed conceptual site plan is provided in Figure 1-2. A full-size copy of the plan is provided in Appendix A. The study area is generally bounded by Centennial Pkwy to the north, Century PI to the west, McCaslin Blvd to the east, and Dillon Rd to the south. Tasks undertaken during this study included the following: 1. Reviewed the Applicant's proposed development plans and other background data. 2. Conducted a virtual field reconnaissance of existing roadway and intersection geometries, traffic controls, and speed limits. 3. Collected peak hour turning movement counts at the key intersections. 4. Analyzed existing levels of service at each of the key study intersections based on the methodologies set forth in the Highway Capacity Guidelines (HCM ) 7th Edition and reports generated by Synchro as reported by Synchro version 12 software. 5. Forecasted background future traffic volumes based on baseline traffic counts, pipeline projects, and regional traffic growth for 2026 (build -out) and 2045 (long-range) conditions. 6. Calculated background levels of service at each of the key study intersections for the projected build - out years based on background future traffic forecasts, and the existing lane use and traffic controls. Galloway & Company, Inc. 7