Deception Pass Log Rail Report
A final report has been submitted to the Transportation Research Board (TRB) on the Deception Pass Log Rail and is available with video clip.
View the final report and video clip

In-Service Performance of Guardrail Terminal Treatments
This research study was conducted to evaluate the in-service performance of existing guardrail end treatments and unrestrained pre-cast concrete barrier in Washington State.
View the final report.

Washington State Cable Median Barrier In-Service Study
November 2003 submittal for presentation at the 83rd Annual Meeting of the National Transportation Research. The paper presents WSDOT's experience with Cable Median Barrier on three locations for about 24 miles.
View the submittal

Median Treatment Study of Washington State Highways
A study of across the median crashes on Washington’s multilane, divided state highways was conducted to evaluate median barrier guidelines and identify specific highway sections where installation of a barrier may be desirable.
View final report

SR 5 Weaving Analysis (Olympia, WA)
Analyze the effectiveness of different modeling techniques and tools in assessing weave section performance and forecasting. Use the tools to analyze an existing weave section that is exhibiting operational problems.
View final report

Safety and Aesthetics in Urban Roadway Design
A coordinated effort to ensure the broad array of expectations for urban roadway design is considered in the development of urban design guidelines for state highways.
Context Sensitive Design

Rumble Strips Usage on Washington State Highways
Single vehicle run-off the road crashes account for 30% of the fatal accidents in Washington State. In an effort to reduce these fatalities, shoulder rumble strips are use to alert drivers that they have left the traveled way.
More information on Rumble Strips