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During the am peak hour, these intersections currently operate at Level of Service level B and <br />C, respectively, and at LOS B and A in the pm peak hour. The intersection of S.144th Street and <br />S.42 nd Ave will change from a four -way stop intersection to a signalized intersection between <br />now and 2022, changing the delays experienced by traffic as a baseline. After signalization, this <br />intersection will operate at LOS B during peak am and pm times. With increased traffic due to <br />development of B2K, the intersection will operate at LOS C, characterized by average delays. <br />To help mitigate the traffic - related impacts to the neighborhood, the School District will make <br />several improvements to transportation infrastructure near the site. A sidewalk, pedestrian <br />lighting, and vehicular turnaround immediately west of the school site on the church easement <br />and private drive will be among the improvements planned. Also planned is the development of <br />the missing link of S. 142nd Street, from 431d Ave S. to 44th Ave S. Currently a dirt and gravel <br />pedestrian -only trail, the section of undeveloped right -of -way will be developed with a 23' wide, <br />two -way asphalt driving surface and a 6" curb and 6' wide sidewalk to the south. <br />Because of traffic patterns at elementary schools throughout the District and Showalter Middle <br />School, there is concern that parents picking up their children will queue on and offsite. <br />Emergency vehicles (primarily fire trucks) need to access all portions of schools at all times, <br />including pickup and dropoff times when vehicular traffic is slow and heavy. Two emergency <br />vehicle access points to the site are identified; the primary access at the southwest corner of the <br />site and a secondary access point through bollards and a path between Showalter Middle <br />School and B2K. For the secondary access to be available, the parking lot at Showalter Middle <br />School needs to be free of stopped or slow- moving cars. Tukwila School District proposes <br />staggered bell times between the two schools to ensure emergency access to B2K even if <br />queuing extends off the B2K property. <br />Onsite, there is enough curb length to allow approximately 10 cars at a time to queue in the <br />designated dropoff lane from the southeast corner of the parking area curving through the entry <br />to the school. Internal to the parking lot in the main drive aisle, there is space for another 16 <br />21 <br />23 <br />1. <br />f <br />[p <br />P <br />., <br />C k <br />1 <br />1 trorrtT.6dlnek <br />WC <br />ya Ck'Wwenxamk v <br />E <br />I <br />I <br />1 <br />f <br />Because of traffic patterns at elementary schools throughout the District and Showalter Middle <br />School, there is concern that parents picking up their children will queue on and offsite. <br />Emergency vehicles (primarily fire trucks) need to access all portions of schools at all times, <br />including pickup and dropoff times when vehicular traffic is slow and heavy. Two emergency <br />vehicle access points to the site are identified; the primary access at the southwest corner of the <br />site and a secondary access point through bollards and a path between Showalter Middle <br />School and B2K. For the secondary access to be available, the parking lot at Showalter Middle <br />School needs to be free of stopped or slow- moving cars. Tukwila School District proposes <br />staggered bell times between the two schools to ensure emergency access to B2K even if <br />queuing extends off the B2K property. <br />Onsite, there is enough curb length to allow approximately 10 cars at a time to queue in the <br />designated dropoff lane from the southeast corner of the parking area curving through the entry <br />to the school. Internal to the parking lot in the main drive aisle, there is space for another 16 <br />21 <br />23 <br />