Travel data

Learn about our traffic data collection program and the data and services we provide such as annual mileage and travel information, peak hour vehicle traffic report, traffic count services, traffic data request and summary statistics, and vehicle speed reports.

Annual mileage and travel information

Statewide mileage and travel information based on public roadway data provided annually to the Federal Highway Administration (FHWA).

Ramp & Roadway Report

Yearly reports of traffic volume data on major roadways and ramps in the Puget Sound area.

Traffic count data

Get access to data and statistics collected through our vehicular traffic data monitoring program.

Congestion & multimodal mobility reports

Find information on annual multimodal mobility and congestion trends as well as regular volume and speed updates on highway, freight and toll systems.

Bicyclist and pedestrian count programs

Learn about our bike and pedestrian count programs made possible by our network of permanent counters.  Access count data through our portal.

Traffic count services

We provide traffic data and retrieval services for the purpose of collecting traffic volume, traffic speed and other traffic data elements.

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Learn more about work zone safety

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.