Glossary and Abbreviations & Acronyms List

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

WSDOT Glossary

The WSDOT Glossary (PDF 1.8MB) is a developing resource to centralize terms from WSDOT Manuals, documents such as transportation plans, and areas of expertise within the agency. Its purpose is to provide authoritative definitions and source information to support understanding and clear communication among WSDOT practitioners, agency partners and the public. Entries consist of terms (listed alphabetically), definitions, sources, and where applicable, related information.

To find terms of interest, press ctrl and F on your keyboard and enter the desired term in the box.

Abbreviations & Acronyms List

The Abbreviations & Acronyms List (PDF 206KB) spells out short forms of words and phrases commonly used in transportation and related fields.

We welcome your feedback

The WSDOT Glossary and Abbreviations & Acronyms List will be updated periodically, and we welcome your suggestions for improving them. If you have questions, comments, or suggestions for additions to either resource, please email library@wsdot.wa.gov.

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Improved access to 98.2 miles of upstream fish habitat

through 15 fish passage projects in 2021.

28% increase in the value of exports and imports 

from $90.2 billion in 2020 to $115.5 billion in 2021.