geographic information systems

WA-RD 352.1
Authors: 
April Cutting, Ron Porter, Fred Mannering.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Friday, September 1, 1995
WA-RD 285.1
Authors: 
Timothy L. Nyerges, James D. Orrell.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Thursday, October 1, 1992
WA-RD 364.2
Authors: 
Roy Weston, Inc., Jeppesen Sandersen, Inc., Lee Anne Walker, Inc., Reid Middleton, Inc.
Originator: 
Roy F. Weston, Inc.
Publication Date: 
Thursday, December 1, 1994
WA-RD 364.1
Authors: 
Roy F. Weston, Inc., Jeppersen Sandersen, Inc., Lee Anne Walker, Inc., Reid Middleton, Inc.
Originator: 
Roy F. Weston, Inc.
Publication Date: 
Tuesday, November 1, 1994
WA-RD 579.1
Authors: 
Daniel J. Dailey, Fredrick W. Cathey.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Sunday, November 30, 2003
WA-RD 617.1
Authors: 
Daniel J. Daily, Frederick W. Cathey.
Originator: 
Washington State Transportation Center (TRAC)
Publication Date: 
Wednesday, June 1, 2005