Dynamic speed feedback signs (DSFS) are promising countermeasure to reduce curve speeds and subsequent lane departures at freeway interchange ramps, although their use in such contexts has been … [Read more...] about Evaluation of Dynamic Speed Feedback Signs on Freeway Interchange Ramps
Changeable Message Signs
Variable Speed Limit Control of Traffic Flow in Expressway Construction Zone
With the increasing speed of construction and the continuous improvement of its corresponding infrastructure, the expressway plays an increasingly important role in promoting the development of … [Read more...] about Variable Speed Limit Control of Traffic Flow in Expressway Construction Zone
Behavioral Traffic Safety Messaging on Variable Message Signs
Changeable, electronic, or dynamic message signs are used to provide real-time traffic information to drivers while en route to their destination. Many agencies also use these signs to display safety … [Read more...] about Behavioral Traffic Safety Messaging on Variable Message Signs
TxDOT Pilot Program Includes Color Dynamic Messages to Help Warn El Paso Drivers
The Texas Department of Transportation started a pilot program to include color dynamic messages on traffic signs in El Paso. Research has shown adding color graphics to traffic signs reduces the time … [Read more...] about TxDOT Pilot Program Includes Color Dynamic Messages to Help Warn El Paso Drivers
Intelligent Work Zone Using Automatic Queue Detection Systems
This report documents the the evaluation of the effectiveness of the Advanced Queue Detection (AQD) systems installed on Interstate work zones in Nebraska. Specifically, (1) the system performance was … [Read more...] about Intelligent Work Zone Using Automatic Queue Detection Systems
Delay or Travel Time Information? The Impact of Advanced Traveler Information Systems on Drivers’ Behavior Before Freeway Work Zones
Peak travel times contribute to congestion formation at freeway work zones. Advanced Traveler Information Systems (ATIS) can inform drivers in real-time about the delays and travel times en-route and … [Read more...] about Delay or Travel Time Information? The Impact of Advanced Traveler Information Systems on Drivers’ Behavior Before Freeway Work Zones