The Virginia Department of Transportation (VDOT) is interested in refining work zone safety performance measures so that safety can be better assessed, monitored, and compared over time. VDOT … [Read more...] about Work Zone Safety Performance Measures for Virginia
Virginia Transportation Research Council
Considerations for the Development of Work Zone Mobility Performance Measures and Thresholds for Virginia Freeways
The Federal Highway Administration has been encouraging states to improve their monitoring and tracking of the mobility impacts of work zones. The use of mobility performance measures will enable … [Read more...] about Considerations for the Development of Work Zone Mobility Performance Measures and Thresholds for Virginia Freeways
Work Zone Variable Speed Limit Systems: Effectiveness and System Design Issues
Variable speed limit (VSL) systems have been used in a number of countries, particularly in Europe, as a method to improve flow and increase safety. VSLs use detectors to collect data on current … [Read more...] about Work Zone Variable Speed Limit Systems: Effectiveness and System Design Issues
Evaluation of Best Practices in Traffic Operation and Safety: Phase I: Flashing LED Stop Sign and Optical Speed Bars
In a previous extensive review of overseas literature, researchers identified 42 traffic operations and safety technologies and practices that were not currently deployed in Virginia. These were … [Read more...] about Evaluation of Best Practices in Traffic Operation and Safety: Phase I: Flashing LED Stop Sign and Optical Speed Bars
Use of Police in Work Zones on Highways in Virginia: Final Report
It is generally accepted that one of the most effective ways of controlling speed in a work zone is to have a staffed police car positioned at the beginning of the work zone with its lights flashing … [Read more...] about Use of Police in Work Zones on Highways in Virginia: Final Report
Deflection Limits for Temporary Concrete Barriers
Whenever a traffic control plan is developed that utilizes temporary barriers, it is important to define acceptable barrier deflection criteria. However, the acceptable deflection criteria can be … [Read more...] about Deflection Limits for Temporary Concrete Barriers