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HomeMy WebLinkAboutExh.6_RS_Traffic Impact Analysis_180425TRIP GENERATION ANALYSIS APRIL 23, 2018 CONSEJO COUNSELING & REFERRAL SERVICES Prepared for: Consejo Counseling & Referral Services 3808 South Angeline Seattle, WA 98118 Prepared by: 1201 Pacific Ave, Suite 600 Tacoma, WA 98402 www.phtraffic.com Trip Generation Analysis Renton, WA Consejo Counseling 1 Project Description This memorandum documents the anticipated traffic impacts of the Consejo Counseling & Referral Services project in the city of Renton. The proposed project consists of replacing the existing medical office uses within the 18,680 square foot building with Consejo’s Services as a single occupant in phases as existing lease agreements expire by 2020. The project site is located on the south side of SW 10th St between Powell Ave SW and Lind Ave SW. Data and Information Sources · Consejo Site Plan, 3/2/2018 by Wedderman Architecture · ITE Trip Generation Manual, 9th Edition, 2012. · ITE Parking Generation Manual, 4th Edition, 2010 Existing Conditions Site The project site is an existing medical office building in Renton, WA at 723 SW 10th St. The site accesses directly onto the south side of SW 10th St by two driveways on the westerly and easterly ends of the property. The driveways access points are connected by a parking drive aisle which circulates around the existing building. Roadway SW 10th St is an improved straight 4-lane roadway with existing streetlighting, curb and gutter, storm drainage, sidewalks, and a landscape strip along the site frontage. Parking The site parking lot contains capacity for 103 parking stalls. 9 of these stalls are currently covered by a portable storage structure. Transit King County Metro routes 153 and F-Line are served on Lind Ave SE approximately 750 ft east of the project site. Continuous sidewalk connections are available between the bus stops and the project site. Given the nature of services provided by Consejo public transit is anticipated to be utilized by Consejo customers. Trip Generation Analysis Renton, WA Consejo Counseling 2 Future Conditions Trip Generation Trip generation is used to evaluate the potential traffic impacts on the surrounding street system. This is denoted by the quantity or specific number of new trips that enter or exit a project during a designated time period, such as a specific peak hour or an entire day. As the site is currently being used as medical offices, the goal of the analysis is to evaluate net difference in traffic due to the conversion to Consejo Services use. Proposed Use Consejo Counseling and Referral Services provides behavioral health services to the community including outpatient mental health programs, Older Adult Day Support Programs, Psychiatric Care Programs, and Domestic Violence Services. Based on the proposed site use description it was determined the Medical-Dental Office Land Use Code (LUC) 720 from ITE’s Trip Generation Manual, 9th Edition as the most appropriate designation for the existing land use and as a conservative estimate for the proposed use. Since there is no proposal to add floor space and the evaluated uses are not changing there will be no anticipated change in site trip generation. Parking The existing site contains 94 marked parking stalls exceeding the estimated 80 parking stalls needed for the intended use. The 85th percentile peak parking demand for a medical-dental office building based on ITE’s Parking Generation, 4th Edition is 4.27 vehicles per 1,000 square foot. Summary The Consejo Counseling & Referral Services project proposes to use the existing 18,680 square foot medical office building in the City of Renton to deliver their behavioral health service programs. The overall site and access configuration is proposed to remain via the two existing driveways. Public transit routes are available within walking distance to the site with existing sidewalk connections. There is no net increase in traffic generated from the proposed project. Existing parking supply exceeds the estimated demand using ITE Parking Generation evaluation. Based on the analysis provided, no off-site mitigation is identified at this time.