An evaluation of detectable warning surfaces for sidewalk curb ramps. Final report.

Virginia Department of Transportation, Richmond

Enhancements to passive warning devices at railroad-highway grade crossings.

Texas Department of Transportation, Austin

Evaluation of dynamic sign systems for narrow bridges. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.

Detectable warning surfaces: color, contrast, and reflectance.

Federal Transit Administration, Washington, D.C.

Motorists' requirements for active grade crossing warning devices. Final report.

Federal Highway Administration, Traffic Systems Division, Washington, D.C.

Effectiveness of motorist warning devices at rail-highway crossings. Final report.

Federal Highway Administration, Office of Research, Development and Technology, Washington, D.C.

Executive summary and abstract for the report entitled "An evaluation of signs for sight-restricted rural intersections."".

Federal Highway Administration, Office of Research, Washington, D.C.

Effective warning devices for parked/disabled vehicles. Executive summary. Final report.

Federal Highway Administration, Office of Research and Development, Washington, D.C.

Effective warning devices for parked/disabled vehicles. Final report.

Federal Highway Administration, Office of Research and Development, Washington, D.C.

Feasibility of an automatic truck warning system. Final report.

Federal Highway Administration, Office of Safety and Traffic Operations Research and Development, McLean, Va.

An evaluation of signs for sight-restricted rural intersections. Final report.

Federal Highway Administration, Office of Research, Washington, D.C.

Advance traffic control warning systems for maintenance. Final report.

Federal Highway Administration, Baton Rouge, Fla.

Rail-highway crossing warning device - life cycle cost analysis. Final report.

Federal Railroad Administration, Office of Safety, Washington, D.C.

Video enforcement for HOV lanes: field test results for the I-30 HOV lane in Dallas.

Texas Department of Transportation, Austin

The development and evaluation of a prototype grade severity rating system. Final report.

Federal Highway Administration, Washington, D.C.