The proposed solution involves implementing upgraded signal controllers and making targeted modifications and enhancements at eight (8) intersections along Sunnyside Road, between SE 132nd Avenue and SE 172nd Avenue. • SE Sunnyside Rd / 132nd Ave (modified) • SE Sunnyside Rd / 142nd Ave (modified) • SE Sunnyside Rd / 147th Ave (modified) • SE Sunnyside Rd / 152nd Ave (modified) • SE Sunnyside Rd / 157th Ave (modified) • SE Sunnyside Rd / 162nd Ave (modified) • SE Sunnyside Rd / 169th Ave (modified) • SE Sunnyside Rd / 172nd Ave (modified) The design includes installation of upgraded signal controllers, signal timing enhancements, radar detection at six of the eight intersections, addition of retroreflective signal backplates, supplemental signal heads, and signal ahead warning signs with cross-street identifiers. These improvements are intended to reduce the number of stops and mitigate turning movement and rear-end crashes, particularly those related to failure to yield and sudden deceleration at signalized intersections.
