The Washington State Transportation Center (TRAC) is a cooperative, interdisciplinary transportation research agency. Its members, Washington State University (WSU), the University of Washington (UW), and the Washington State Department of Transportation (WSDOT), formed TRAC in 1983 to coordinate transportation research efforts—both state and commercial, public and private—and to develop research opportunities both nationally and locally. TRAC acts as a link among government agencies, university researchers, and the private sector.