Planning guidance

Use these resources to align your plan or study with WSDOT standards and best practices.

Find state transportation data for local and regional planners, decision-makers and the public to better understand the state's transportation system.

View a list of transportation planning-related resources for updating local government comprehensive plans.

Find the guidance and tools to conduct and document a planning study.

Learn about Tribal, metropolitan and regional transportation planning organizations, and the resources and rules related to these regional planning partners.

1,557 work zone-related crashes

were recorded on state highways in 2025.

542 people were injured

in 2025 due to work zone-related crashes. 

29% increase in fatality collisions

in work zones from 2024 to 2025.