In an effort to make traffic move more smoothly, researchers at the University of Missouri tested the effectiveness of Variable Advisory Speed Limit (VASL) systems, which provide drivers with a … [Read more...] about Variable Speed Limits Ease Congestion, Reduce Crashes on Highways: Study
Variable Speed Limit Systems
Optimal Variable Speed Limit Control System for Freeway Work Zone Operations
Improving operational safety and efficiency of variable speed limit (VSL) systems are the two core control objectives at work zone areas. In response to such need, this study presents a proactive VSL … [Read more...] about Optimal Variable Speed Limit Control System for Freeway Work Zone Operations
Effectiveness of VSL Signs in Reducing Crash Rates on Roadway Construction Work Zones in Alaska
As a driver's speed increases, so do the probability of an incident and likelihood of injury. The presence of equipment, personnel, and a changing landscape in construction zones create greater … [Read more...] about Effectiveness of VSL Signs in Reducing Crash Rates on Roadway Construction Work Zones in Alaska
Optimal Variable Speed Limit Control under Connected Work Zone and Connected Vehicle Environment
Despite the long-term benefits gained through road maintenance projects, the work zone involved can cause serious traffic congestion and greatly increase traffic delay. Variable speed limit (VSL) … [Read more...] about Optimal Variable Speed Limit Control under Connected Work Zone and Connected Vehicle Environment
Variable Speed Limit Control for Delay and Crash Reductions at Freeway Work Zone Area
Improving operational efficiency and safety on freeway segments has long been recognized as a priority in traffic communities. This study presents a comprehensive variable speed limit (VSL) control … [Read more...] about Variable Speed Limit Control for Delay and Crash Reductions at Freeway Work Zone Area
Evaluation of Variable Advisory Speed Limits in Congested Work Zones
The effectiveness of variable “advisory” speed limit (VASL) systems in congested urban work zones was investigated. Except for one publication, all previous studies focused on regulatory speed limit … [Read more...] about Evaluation of Variable Advisory Speed Limits in Congested Work Zones