In Spring of 2008 the Social and Economic Sciences Research Center (SESRC) at Washington State University administered a mixed mode survey of shipping, receiving, and trucking businesses for the Washington State Department of Transportation (WSDOT). The mixed mode survey approach involves a combination of telephone survey and Internet survey methods.
The purpose of the survey was to obtain information from companies in the trucking industry and companies designated as freight-dependent sectors who also own commercial trucks, with emphasis of those businesses reliant on Interstate-5 through Southwest Washington and Interstate-90, which connects Eastern and Western Washington through the Cascade mountain pass.
WSDOT plans to use this information to inform decisions with regard to highway transportation and alternatives associated with specific highway closures. This report includes survey results and documentation.