Library & research reports

Take a look at available library services and find current information about transportation research projects and reports.

Library

Discover library services available to you, search our collections, access digital materials and contact our librarians.

Research reports

Learn about applied transportation research conducted by WSDOT. Find information on current research projects, access research reports, watch our webinars and contact our research coordinators.

Glossary and Abbreviations & Acronyms List

Check out these tools to find definitions of terms and decode common abbreviations used by WSDOT.

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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.