Find details about the methods we use to keep travelers safe, including roundabouts, road equipment and striping, and workzone safety information.
Learn about collector/distributors and how they improve traffic flow on freeways.
Learn about diverging diamond interchanges, a proven way to move more people and reduce the potential for collisions.
Learn about roundabouts, including how to travel through them as a pedestrian, cyclist or driver.
Learn about how we use rumble strips to keep vehicles on the roadway and reduce the frequency of collisions.
Basic information about annual roadway re-striping work, and how you can help.
Find important information about traveling in and around roadway work zones, including information on traffic control training and certifications.
registrations in Washington in 2023, up from 114,600 in 2022.
actively monitored on 918 acres in 2023.
in the Snoqualmie Pass East Project area since 2014.
