Planning study guidance

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

Current guidance

Planning Studies Review and Approval Process Memorandum (PDF 285KB)

  • It is highly recommended that all WSDOT planning studies follow the same signature review process detailed in the memo. The M2 Team provides subject matter expert review in a predictable and effective manner.
  • However, Proviso funded studies often have their own rules and regulations as well as specific directions from the Legislature.
  • There are also extra steps to this process if the planning study is a Planning and Environmental Linkages (PEL) study. 

Explore active transportation-related considerations to develop a quality planning study.

Consider priority design issues in the planning phase to reduce or redirect efforts during scoping and design.

Use the guidance on this page to document environmental information, analysis and products during transportation planning for highway corridor and modal facility plans.

Use this guidance to incorporate freight consideration in the planning study development.

Avoid maintenance issues down the road by including this guidance in your planning process.

Use this guidance to clarify your planning study recommendations in a way that WSDOT can support from a priority and programming perspective.

Use this guidance to include public transportation considerations in the process of developing planning studies.

Consideration of safety performance should be a part of the conversation throughout plan development (continuing through programming and design).

Discover how incorporating transportation operations tools into your planning studies will benefit the project through its lifecycle.

Slow down on ice and snow.

It's easier to skid or lose control traveling at higher speeds. Give yourself more time to stop.

Carry chains, practice installing them.

Winter conditions could mean chains are required on your route. Practice putting them on your vehicle ahead of time.

Pack your winter car kit.

Carry extra supplies like warm clothing, ice scraper and brush, jumper cables and other emergency items.