Traffic safety methods

Find details about the methods we use to keep travelers safe, including roundabouts, road equipment and striping, and workzone safety information.

Our commitment to safety also helps decrease congestion as roadway incidents are one of the leading causes of congestion on the roadway.

We need the public's help to keep the roadways safe. In the spring, we kick off our annual Give 'em a Brake campaign to remind drivers of driving in construction zones.

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.

Zero emission electric vehicle registrations in Washington

increased 192% between 2017 and 2021.

45 projects to improve freight rail structures and freight movement

were underway as of December 31, 2021.

Washington state leveraged $100,000 to secure $27 million

in funding for airport investments in Fiscal Year 2022.