Federal Highway Administration, Washington, D.C.Mode of access: Internet.Author corporate affiliation: Pennsylvania State University, University Park, Applied Research LaboratoryReport covers the period Oct 1978-Sept 1980Subject code: NCXBSubject code: XQCPSubject code: YC
National Highway Traffic Safety Administration, Washington, D.C.Mode of access: Internet.COP: 2COP: ...
Mode of access: Internet.Author corporate affiliation: New Jersey Department of Transportation, Divi...
Federal Highway Administration, Office of Implementation, McLean, Va.Mode of access: Internet.Author...
Federal Highway Administration, Washington, D.C.Mode of access: Internet.Author corporate affiliatio...
Mode of access: Internet.Author corporate affiliation: Federal Highway Administration, Protective Sy...
Federal Highway Administration, Office of Research, Development, and Technology, Washington, D.C.Mod...
Mode of access: Internet.Author corporate affiliation: Federal Highway Administration, Office of Hig...
Texas Department of Transportation, AustinFederal Highway Administration, Washington, D.C.Mode of ac...
Federal Highway Administration, Washington, D.C.Mode of access: Internet.Author corporate affiliatio...
Mode of access: Internet.Author corporate affiliation: Federal Highway Administration, McLean, Va.Re...
Pennsylvania Department of Transportation, HarrisburgFederal Highway Administration, Washington, D.C...
National Highway Traffic Safety Administration, Washington, D.C.Mode of access: Internet.Author corp...
Mode of access: Internet.Author corporate affiliation: Louisiana Transportation Research Center, Bat...
Mode of access: Internet.Author corporate affiliation: National Highway Traffic Safety Administratio...
Federal Highway Administration, Washington, D.C.Mode of access: Internet.Author corporate affiliatio...
National Highway Traffic Safety Administration, Washington, D.C.Mode of access: Internet.COP: 2COP: ...
Mode of access: Internet.Author corporate affiliation: New Jersey Department of Transportation, Divi...
Federal Highway Administration, Office of Implementation, McLean, Va.Mode of access: Internet.Author...
Federal Highway Administration, Washington, D.C.Mode of access: Internet.Author corporate affiliatio...
Mode of access: Internet.Author corporate affiliation: Federal Highway Administration, Protective Sy...
Federal Highway Administration, Office of Research, Development, and Technology, Washington, D.C.Mod...
Mode of access: Internet.Author corporate affiliation: Federal Highway Administration, Office of Hig...
Texas Department of Transportation, AustinFederal Highway Administration, Washington, D.C.Mode of ac...
Federal Highway Administration, Washington, D.C.Mode of access: Internet.Author corporate affiliatio...
Mode of access: Internet.Author corporate affiliation: Federal Highway Administration, McLean, Va.Re...
Pennsylvania Department of Transportation, HarrisburgFederal Highway Administration, Washington, D.C...
National Highway Traffic Safety Administration, Washington, D.C.Mode of access: Internet.Author corp...
Mode of access: Internet.Author corporate affiliation: Louisiana Transportation Research Center, Bat...
Mode of access: Internet.Author corporate affiliation: National Highway Traffic Safety Administratio...
Federal Highway Administration, Washington, D.C.Mode of access: Internet.Author corporate affiliatio...
National Highway Traffic Safety Administration, Washington, D.C.Mode of access: Internet.COP: 2COP: ...
Mode of access: Internet.Author corporate affiliation: New Jersey Department of Transportation, Divi...
Federal Highway Administration, Office of Implementation, McLean, Va.Mode of access: Internet.Author...