Auditory message studies for route diversion. Final report.

Mode of access: Internet.

Feasibility of changeable message signs and highway advisory radio for freeway maintenance. Final report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin

Effectiveness of changeable message signs in controlling vehicle speeds in work zones. Final report.

Virginia Department of Transportation, Richmond

Safety and environmental design considerations in the use of commercial electronic variable-message signage. Final report.

Mode of access: Internet.

Assessment of changeable message sign technology. Final report.

Mode of access: Internet.

Variable message signing for traffic surveillance and control - a state of the art report. Final report.

Mode of access: Internet.

Evaluation of the ADDCO flip-disc variable message sign.

Federal Highway Administration, Washington, D.C.