Congestion & multimodal mobility reports

Find information on annual multimodal mobility and congestion trends as well as regular volume and speed updates on highway, freight and toll systems.

Following an extensive stakeholder engagement process, we replaced the Corridor Capacity Report with the interactive Multimodal Mobility Dashboard. The Multimodal Mobility Dashboard (MMD) provides annual multimodal mobility performance information on select state-owned facilities through a user-friendly format and expanded areas of analysis.

What is the Multimodal Mobility Dashboard? 

The MMD focuses on the state’s most-traveled commute corridors, analyzing congestion and the strategies used to mitigate it—including public transportation and our Incident Response program. Where data is available, the MMD also analyzes multimodal freight mobility as well as travel by passenger rail, ferry, airplane, and walking and biking. 

Multimodal Corridor Capacity Report

The annual Multimodal Corridor Capacity Report (the predecessor to the Multimodal Mobility Dashboard) was published annually from 2007 through 2018. The past five years are listed below (as well as a story map for 2018). We can provide earlier PDF editions by request.  

Travel volume and speed trends dashboard

Our travel volume and speed trends dashboard (TVST) shares highway, toll and freight travel data , focusing on the state's most-traveled commute corridors. The TVST dashboard uses data from our retired COVID-19 dashboard, which was developed to give regular updates on how the pandemic affected statewide travel. We strive to update this data daily.

As of July 31, 2022, we are no longer updating the COVID-19 Multimodal Transportation System Performance Dashboard but will keep it available for the time being as an archive for travel information and data collected during the pandemic. This retired dashboard provides data and information on systems ranging from state highways, ferries and tolling facilities to active transportation, rail and aviation. 


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.