Freeway work zone with lane closure can lead to disruption to local traffic and cause significant impacts on mobility, safety and environmental sustainability. To mitigate traffic congestion near work … [Read more...] about Fault-Tolerant Control of Variable Speed Limits for Freeway Work Zone Using Likelihood Estimation
Variable Speed Limit Systems
Addressing Work Zone Speed and Safety Webinar
This 90-minute workshop discussed the effectiveness of various work zone countermeasures used to reduce speeds and address crashes in work zones. General countermeasures, such as dynamic speed … [Read more...] about Addressing Work Zone Speed and Safety Webinar
A Managed Work Zone on Colorado’s I-25 Exemplifies Technology’s Life-Saving Value to Workers and Travelers Alike
In September 2018, the Colorado DOT began construction on the I-25 South Gap project. Teaming up with Street Smart, which manages the Smart Work Zone equipment and integration, various Smart Work Zone … [Read more...] about A Managed Work Zone on Colorado’s I-25 Exemplifies Technology’s Life-Saving Value to Workers and Travelers Alike
Driver Feedback on Monetary Penalty and Its Impact on Work Zone Speed
Across the nation, one work zone fatality occurs every 10 h (about 2.3 per day) and one injury, every 13 min (110 per day). Speed limit compliance in and around work zones concerns transportation … [Read more...] about Driver Feedback on Monetary Penalty and Its Impact on Work Zone Speed
Fault-Tolerant Variable Speed Limit Control for Freeway Work Zone
Freeway work zone can easily lead to traffic congestion which has detrimental effects on travel time and safety. By using the detected traffic states near work zone area, variable speed limit (VSL) … [Read more...] about Fault-Tolerant Variable Speed Limit Control for Freeway Work Zone
Variable Speed Limit for Freeway Work Zone with Capacity Drop Using Discrete-Time Sliding Mode Control
Freeway work zone with lane closure has a direct negative impact on travel time, safety, and environmental sustainability. The capacity drop at the onset of the congestion can also further reduce the … [Read more...] about Variable Speed Limit for Freeway Work Zone with Capacity Drop Using Discrete-Time Sliding Mode Control