Effectiveness of Changeable Message Signs in Controlling Vehicles Speeds in Work ZonesAuthor/Presenter: Garber, Nicholas J.; Patel, Surbhi T.
This study evaluates the effectiveness of the CMS with radar unit in reducing work zone speeds. Four CMS messages designed to warn drivers that their speed exceeded the maximum safe speed were tested at seven work zones on two interstate highways in Virginia. Using data collected at these sites, statistical tests were conducted to determine whether significant reductions in speed accompanied the use of CMS.
Publication Date: August 1994
Full Text URL: Link to URL
Contact the VTRC Media Team at [email protected] for a paper copy of the report.
Topics: Changeable Message Signs; Intelligent Transportation Systems; Speed Control; Traffic Control Devices; Work Zones