Learn about the tools we use to reduce traffic congestion and collisions, including ramp meters, traffic management centers, traffic signals and our incident response team.
Learn about Active Traffic and Demand Management (ATDM), an operational strategy for reducing collisions associated with congestion and blocked lanes.
Learn about our avalanche forecasting and control efforts to keep our transportation system reliable and safe.
Learn about the WSDOT Incident Response Program - a traffic congestion mitigation strategy consisting of responding to, investigating, cleaning up, and clearing traffic incidents.
Learn about ramp meters and how they work.
Learn about how we prepare and prioritize our response to winter weather driving conditions.
WSDOT issues permits allowing businesses and individuals to install and remove motorist-owned tire chains
Learn about the central command centers for WSDOT's highway monitoring and response efforts.
Learn more about how traffic signals operate, and how and when they are installed.
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.
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