To make work zones safer, state departments of transportation (DOTs) use smart technologies with specialized components, such as sensors, communications, software, and electronic equipment, to manage … [Read more...] about Use of Smart Work Zone Technologies for Improving Work Zone Safety: A Synthesis of Highway Practice
Traffic Queuing
Characterizing Interstate Crash Rates Based on Traffic Congestion Using Probe Vehicle Data
Crash reduction factors are widely used by engineers for prioritizing safety investments. Work zones are routinely analyzed by the length and duration of queues. Queue detection warning technology has … [Read more...] about Characterizing Interstate Crash Rates Based on Traffic Congestion Using Probe Vehicle Data
Queue Analysis at Work Zones From Field-Collected Data
Estimation of the capacity of work zones is vital to manage the possibility of traffic flows exceeding capacity and resulting in unbearable queues during work zone lane closures. A plethora of … [Read more...] about Queue Analysis at Work Zones From Field-Collected Data
Survey of Work Zone Practices and Validation of Highway Capacity Manual Work Zone Capacity Model
Capacity at work zones is one of the major factors affecting queueing at work zones. Different states within the United States use their own methodology in determining work zone capacities and when to … [Read more...] about Survey of Work Zone Practices and Validation of Highway Capacity Manual Work Zone Capacity Model
Alabama DOT Deploys Queue Detection System in Tuscaloosa Work Zone
After the widening of I-20/I-59 in Tuscaloosa, Alabama, began, traffic conditions worsened with long queues, secondary crashes, and extreme delayed travel times. To help mitigate the issues, Alabama … [Read more...] about Alabama DOT Deploys Queue Detection System in Tuscaloosa Work Zone
Evaluation of DOTD’s Existing Queue Estimation Procedures
Louisiana Department of Transportation and Development (DOTD) requests that freeway lanes should not be closed for construction work during hours when capacity exceeds 1,309 pcphpl. It is not known … [Read more...] about Evaluation of DOTD’s Existing Queue Estimation Procedures