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
Prevention
Safety Impacts of Queue Warning in a Connected Vehicle Environment
Queue warning systems (QWSs) have been implemented to increase traffic safety by informing drivers about queued traffic ahead so that they can react in a timely manner to the queue. Existing QWSs rely … [Read more...] about Safety Impacts of Queue Warning in a Connected Vehicle Environment
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
Struck-By Injuries and Prevention in the Construction Industry
Struck-by hazards are a leading cause of fatal and nonfatal injuries in construction, and have been defined as one of the Focus Four hazards identified by the U.S. Occupational Safety and Health … [Read more...] about Struck-By Injuries and Prevention in the Construction Industry
Implementation of a Real Time Data Driven Smart Work Zone Management System to Provide Queue Alerts to Stakeholders
Queueing frequently occurs in advance of interstate work zones, and back-of-queue crashes are of concern to all agencies. Over 30,000 crashes on 2,280 directional miles of Indiana interstates in … [Read more...] about Implementation of a Real Time Data Driven Smart Work Zone Management System to Provide Queue Alerts to Stakeholders
Highway Worker Safety: A Synthesis of Highway Practice
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 509: Highway Worker Safety identifies how state departments of transportation (DOTs) implement policies using highway worker … [Read more...] about Highway Worker Safety: A Synthesis of Highway Practice