2018 Flashing Yellow Arrow Signals



Flashing Yellow Arrow (FYA) turn signals are widely used to improve signal operations and traffic safety. In 2017, the City conducted a FYA feasibility study for all of the city's signalized intersections. The analysis identified those intersections that met certain physical configuration and safety criteria making it feasible to install FYA left turn signals.

The City installed FYA at five intersections in 2017 and decided to install FYA at up to eight intersections in 2018. Project is currently completed. The table below shows locations where FYA have been installed with this project:




Intersection   Completed
 1. Sahalee Way NE & NE 37th Way
 2. 228th Ave NE & NE 25th Way
 3. 228th Ave NE & NE 12th Way X
 4. 228th Ave NE & NE Inglewood Hill Rd / NE 8th St
 5. E Lake Sammamish Pkwy SE & Louis Thompson Rd NE X
 6. 228th Ave & E Main St
 7. 228th Ave SE & SE 4th St / Crusader Way  X 
 8.  228th  Ave SE & SE 10th St / Spartan Way




project timeline

June 20, 2018 - Design completed

June 25, 2018 - Advertised for bidding

July 10, 2018 - Bid opening

July 17, 2018 - Award project

July 25, 2018 - Pre-construction meeting

August 28, 2018 - Begin construction

December, 2018 - Project completed


estimated cost



Project Design

Final Plans
Contract Provisions

Staff Contact