Changeable message signs.
Contributors: American Association of State Highway and Transportation Officials.; United States. Federal Highway Administration.
Series: Synthesis of highway practice ;; 61
Publisher: Transportation Research Board, National Research Council
Published: 1979
Place of publication: Washington
Language: eng
Number of pages: 37
Subjects: Traffic signs and signals.
Description: Changeable message signs are being used increasingly to reduce congestion and prevent accidents in both rural and urban locations. Because of the rapid development of improved technology, there is a need for up-to-date information on the characteristics, applications, and effectiveness of changeable message signs. This report of the Transportation Research Board includes information on requirements for design, installation, operation, and message effectiveness. It also contains a review of previous and current research, and future development needs are identified.
Notes: Includes bibliographical references.
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."