Improving traffic incident management is one means to help reduce congestion, as traffic incidents account for approximately 25 percent of total congestion on U.S. highways. Between July and September … [Read more...] about Traffic Incident Management Quick Clearance Guidance and Implications
Virginia Transportation Research Council
Work Zone Safety Performance Measures for Virginia
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
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