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 managers.

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.

In 2023, speeding continued to be a top reason for work zone crashes.

Even one life lost is too many.

Fatal work zone crashes doubled in 2023 - Washington had 10 fatal work zone crashes on state roads.

It's in EVERYONE’S best interest.

95% of people hurt in work zones are drivers, their passengers or passing pedestrians, not just our road crews.