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RPT - Deutscher Commercial- Yelm Traffic Assessment 8-12-2021Date: August 11, 2021 To: Mr. Chris Carlson Hatton-Godat Pantier 3910 Martin Way E, Suite B Olympia, WA 98502 From: Aaron Van Aken, PE, PTOE Subject: Deutscher Commercial– Yelm Traffic Assessment The intent of this assessment serves to provide a trip generation analysis for the proposed construction of three commercial buildings totaling 30,000 square feet in the city of Yelm. The subject site is located on a cumulative 4.95-acres within parcel #’s: 2172413 -1001; - 0800; -1201. A description of the project summary is provided below. Proposed Project Deutscher Commercial is a proposed development comprised of two commercial retail buildings (each 7,500 square feet) and a 15,000 square foot building anticipated to be used for medical office purposes. An existing daycare facility is located in the southeast portion of the subject site, which is to remain. The subject site is bordered to the northwest by Tahoma Boulevard SE and to the south by Berry Valley Drive SE. Access to the subject site is proposed via an existing roadway connecting to both Tahoma Boulevard SE and Berry Valley Drive SE. One new driveway to Tahoma Boulevard SE is proposed on the northeast corner. A conceptual site plan illustrating the project configuration and accesses is shown in Figure 2. Figure 1: Vicinity Map HEATH & ASSOCIATES, INC Transportation and Civil Engineering PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 1 Figure 2: Site Plan PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 2 Trip Generation Trip generation is defined by the number of vehicular movements that enter or exit a site during a particular timeframe such as a specific peak hour or an entire day. Trip generation estimates are based on data from the ITE Trip Generation Manual, 10th Edition. There are no defined tenants at this time, so the following Land Use Codes (LUC) were applied: LUC 720 – Medical/Dental Office for the proposed 15,000 square foot building and LUC 820 – Shopping Center for the two 7,500 square foot buildings. Attached to this document are excerpts from the ITE manual. Table 1 below summarizes the estimated trip volumes using average rates. Table 1: Project Trip Generation Land Use Size Trip Type AWDT AM Peak-Hour Trips PM Peak-Hour Trips In Out Total In Out Total Medical – Dental Office 15,000 sq. ft. Primary 522 33 9 42 15 37 52 Shopping Center 15,000 sq. ft. Primary 374 6 3 9 18 20 38 Pass-by (34%) 1 192 3 2 5 9 10 19 Total Primary Trips 896 39 12 51 33 57 90 Total Site Driveway Trips 1088 42 14 56 42 67 109 The proposed Deutscher Commercial is estimated to generate a site total of 1,088 average weekday daily driveway trips with 56 (42 inbound / 14 outbound) AM and 109 (42 inbound / 67 outbound) PM peak hour driveway trips. It should be noted that a portion of project- generated traffic is anticipated to be in the form of pass-by. Pass-by trips are defined as vehicles already captured on the adjacent roadway and are subsequently attracted to the site for a convenience-based stop. These trips are not considered as new trips but will impact the site’s access points. Figure 3 on the following page illustrates the project’s primary trip distribution and assignment while Figure 4 illustrates pass-by trips. The main arterial route to and from the subject site is by way of Tahoma Boulevard SE, subsequently providing connection to SR 510. Moreover, backdoor access via Berry Valley Road SE would provide access to the subject site, which is depicted in the primary trip distribution in Figure 3. 1 Pass-by rates were derived from ITE Trip Generation Handbook, 3rd Edition (2017). PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 3 PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 4 PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 5 Transit Service A review of the Intercity Transit regional system map indicates the nearest transit route in the area is served via Route 94. Service is provided from the Olympia Transit Center to the Yelm Walmart from the hours of 6:40 AM to 9:45 PM. The nearest stop with respect to the subject site is located at the intersection of Tahoma Boulevard SE/Killion Street SE & SR- 510 (~0.1 miles northeast). Weekday and weekend service is provided from 6:40 AM – 9:45 PM with approximately 60-minute headways. Refer to the Intercity Transit route schedule for more detailed information. Proposed Access Access to the site is proposed via three driveways. Two driveways extend southeast from Tahoma Boulevard SE and one driveway extends north from Berry Valley Rd SE. All driveways are shown to provide sufficient sight distance, meeting AASHTO standards. Conclusion Deutscher Commercial proposes for the construction of 15,000 square feet of commercial retail and 15,000 square feet of assumed medical/dental space located in the city of Yelm. The subject site, abutted by the intersection of Tahoma Boulevard SE & Berry Valley Drive SE, has a site address of 15152 Berry Valley Drive SE. Based on ITE data, and after accounting for pass-by trips associated with the retail, the project is estimated to generate 896 average weekday daily trips with 51 trips occurring in the AM peak hour and 90 trips (33 in / 57 out) in the PM peak hour. The project would be subject to City of Yelm Transportation Facilities Charges, which are assessed at a cost of $1,497.00 per new PM peak hour trip. An estimated fee is therefore as follows: 90 PM peak hour primary trips x $1,497.00/trip = $134,730.00. However, exact fees and calculations should be based on the actual tenant occupancies and would be determined at the time of building permit issuance. Please call if you require anything further. Sincerely, Aaron Van Aken, P.E., PTOE PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 6 PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 7 PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 8 PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 9 PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 10 PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 11 PO Box 397 Puyallup, WA 98371 (253) 770 1401 heathtraffic.com 12