Research reports

Research Reports Index
Search, view and download the latest research from the Office of Research and Library Services. Includes links to abstracts and Research Notes when available.

New Reports Alert
Subscribe to any of nearly 200 specialized email or text alerts from WSDOT, including those covering research. Under Transportation Research, choose from a list of categories (or select all) and you'll be notified about new research reports and other news about your topics of interest.