Guidelines for flashing traffic control devices. Final report.

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

Evaluation of flashing traffic signal operation. Final report.

Texas Department of Transportation, Austin

Guidelines for the application of arrow boards in work zones. Final report.

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

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

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

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

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

A methodology for determination of grade crossing resource-allocation guidelines. Final report.

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

Evaluation of speed control signs for small rural towns. Final report.

Federal Highway Administration, Washington, D.C.

Improvement of the effectiveness of motorist warnings at railroad highway grade crossings. Final report.

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

Advance traffic control warning systems for maintenance. Final report.

Federal Highway Administration, Baton Rouge, Fla.

Development of guidelines for installation of intersection control beacons. Final report.

Federal Highway Administration, Washington, D.C.

A study of clearance intervals, flashing operation, and left-turn phasing at traffic signals. Volume 1: sumary report. Final report.

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

A study of clearance intervals, flashing operation, and left-turn phasing at traffic signals. Volume 2: clearance intervals. Final report.

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

A study of clearance intervals, flashing operation, and left-turn phasing at traffic signals. Volume 3: flashing operation. Final report.

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

An evaluation of stop signs used with flashing traffic signals. Final report.

Turner-Fairbank Highway Research Center, McLean, Va.

Effectiveness of flashing arrow boards during moving maintenance operations. Final report.

Federal Highway Administration, Washington, D.C.