Traffic safety methods

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.

Slow down – lives are on the line.

Excessive speed was a top cause of work zone collisions in 2024.

Phone down, eyes up.

Work zones need our undivided attention.

It's in EVERYONE’S best interest.

96% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.