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Presentation
  
2018State/ProvinceWashington State Department of Transportation
Report
  
2006Non-Profit (AASHTO, TKNs, TRB, etc.)Transportation Research Boardhttp://www.trb.org/main/blurbs/159957.aspx
Report
  
2018State/ProvinceWashington State Department of Transportation Abstract for the research report and access to the full document.
Resource/Tool
  
2018State/ProvinceWashington State Department of Transportation
Resource/Tool
  
2018State/ProvinceWashington State Department of Transportation