accident severity

WA-RD 048.1
Authors: 
Washington (State). Department of Transportation. Traffic Safety Section.
Originator: 
Washington (State). Department of Transportation. Public Transportation and Planning Division.
Publication Date: 
Friday, May 21, 1982
WA-RD 475.1
Authors: 
Jinsun Lee, Fred L. Mannering.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Tuesday, November 30, 1999