A compilation of the messages and papers of the presidents, 1789-1897.

Vols. 1-10 issued also as House misc. doc. no. 210, 53d Cong., 2d sess.

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.

Sign legibility for modified messages. Final report.

Virginia Department of Transportation, Richmond

Experimental design for evaluating the safety benefits of railroad advance warning signs. Final report.

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

Executive summary and abstract for the report entitled "An evaluation of warning and regulatory signs for curves on rural roads."".

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

Driver response in active advanced warning signs at high-speed signalized intersections. Final report.

Federal Highway Administration, Washington, D.C.

An evaluation of warning and regulatory signs for curves on rural roads. Final report.

Federal Highway Administration, Office of Research and Development, 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.

Field evaluation of innovative active warning devices for use at railroad-highway grade crossings /

"August 1988."

Invehicle Safety Advisory and Warning System (IVSAWS).

"March 1996."

Feasibility of an automatic truck warning system. Final report.

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

Standby power for railroad-highway grade crossing warning systems. Final report.

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

Motorists' comprehension of regulatory, warning, and symbol signs. Volume I: executive summary. Final report.

Federal Highway Administration, Washington, D.C.