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
Measures of Effectiveness
A Smart Highway Work Zone Merge System Enabled by Connected Vehicles
Typical traffic control and operations at work zones usually are not very effective in mitigating the work zone bottleneck. A major reason is that the common early merge behaviors limits utilizing the … [Read more...] about A Smart Highway Work Zone Merge System Enabled by Connected Vehicles
Effectiveness of End-of-Queue Warning Systems and Portable Rumble Strips on Lane Closure Crashes
The Texas Department of Transportation has been deploying work zone intelligent transportation systems in an effort to reduce the number of work zone crashes along the Interstate 35 (I-35) corridor. … [Read more...] about Effectiveness of End-of-Queue Warning Systems and Portable Rumble Strips on Lane Closure Crashes
Evaluating the Effects of Queue Warning Systems on Freeway Work Zones Using Traffic Simulation Software
Work zones are a key component of the rehabilitation efforts that travelers on the U.S. national highway system interact with increasingly every day. Roadway construction, rehabilitation, and … [Read more...] about Evaluating the Effects of Queue Warning Systems on Freeway Work Zones Using Traffic Simulation Software
Evaluation of Automated Flagger Assistance Devices: Interim Report
Flagger safety is an important issue in work zones due to the proximity of the flagger to traffic. Some strategies for improving flagger safety include slowing down approaching vehicles or removing … [Read more...] about Evaluation of Automated Flagger Assistance Devices: Interim Report
Evaluation of Work Zone Split Traffic Symbol Sign
Effective signage that is easy to understand facilitates safe driving through a work zone. While the guidance for work zone signage in the Manual on Uniform Traffic Control Devices (MUTCD) is suitable … [Read more...] about Evaluation of Work Zone Split Traffic Symbol Sign