Planning 2017-06-22 Item 4 - Foster High School Expansion and Birth to Kindergarten - Attachment K: Tukwila School Campus Parking Analysis

Browse Search

Tukwila School Campus Parking Analysis 4. EVENT PARKING ANALYSIS The event parking analysis has been performed for a typical event in the Performing Arts Center and a football game. An event in the Performing Arts Center includes up to 600 attendees and a football game has up to 500 attendees. A graduation has not been considered since graduations are proposed to be moved off -site. The parking demand for each of these event types is summarized in Table 2. Table 2: Event Parking Demand Event Attendees Vehicle Parking OCCUDancy Demand Performing Arts Center 600 2.1 286 Football Game 500 2.1 238 The parking supply on the Tukwila School Campus (Foster High School with changes plus Showalter Middle School) of 310 spaces for an event will provide adequate parking for the anticipated maximum attendance in the Performing Arts Center and at a football game. The anticipated parking demand of 286 parking spaces for a Performing Arts Center event will represent a utilization of 92% of the total campus parking spaces. The additional spaces created with the Tukwila Birth to K school will increase the total supply to 402 parking spaces and would result in a parking utilization of 71 % with an event in the Performing Arts Center. 5. CONCLUSIONS The Tukwila School Campus is anticipated to have 299 parking spaces for normal operations and 310 parking spaces for an event between Foster High School and Showalter Middle School. The Tukwila Birth to K school is proposed to include 80 additional parking spaces with 12 additional spaces for an event, resulting in a total supply of 379 parking spaces for normal operations and 402 parking spaces for an event. The current parking demand at Foster High School and Showalter Middle School is below the supply with the proposed changes. The utilization rate between the two schools is 78% with the proposed parking changes to Foster High School. The highest demand for an event is 600 attendees for an event in the Performing Arts Center. This is anticipated to generate a parking demand of 286 spaces. This event parking is also below the supply with the proposed changes and would have a utilization rate of 92 %. Additional spaces created with the Tukwila Birth to K school will increase the parking supply for events and reduce the utilization to 71 %. Gibson Traffic Consultants, Inc. February 2017 info @gibsontraffic.com 3 GTC #16 -178 213