Highway work-zone safety is a major concern for government agencies, the legislature, and the traveling public. Several work zone intelligent transportation systems (WZITS) have been developed as a … [Read more...] about Low-Cost Portable Video-Based Queue Detection for Work-Zone Safety
Traffic Queuing
Optimal Work Zone Lengths and Signal Timing for Two-Lane Highways Revisited: The Need to Consider Stochasticity
Work zones can give rise to significant costs, both to maintenance agencies as well as to road users. In this paper we focus on the optimal configuration of work zones on two-lane highways. While … [Read more...] about Optimal Work Zone Lengths and Signal Timing for Two-Lane Highways Revisited: The Need to Consider Stochasticity
Real-Time Measurement of Travel Time Delay in Work Zones and Evaluation Metrics Using Bluetooth Probe Tracking
This paper describes the collection and use of 1.4 million travel time records that were collected over a 12-week period in 2009 to evaluate and communicate quantifiable travel mobility metrics for a … [Read more...] about Real-Time Measurement of Travel Time Delay in Work Zones and Evaluation Metrics Using Bluetooth Probe Tracking
Treating Potential “Back-of-Queue” Safety Hazards (presentation)
The purpose of this document is to highlight strategies that can help reduce the work zone congestion that increases back-of-queue crash risk. Studies have shown that rear-end crashes in the advance … [Read more...] about Treating Potential “Back-of-Queue” Safety Hazards (presentation)
Interactive Process of Microsimulation and Logistic Regression for Short-Term Work Zone Traffic Diversion
The rapidly growing number of work zones on national highways is having significant operational impacts due to the temporary loss of capacity. Work zone impact on safety and mobility creates a strong … [Read more...] about Interactive Process of Microsimulation and Logistic Regression for Short-Term Work Zone Traffic Diversion
Treating Potential Back-of-Queue Safety Hazards
This fact sheet is designed to highlight common pitfalls in estimating potential impacts that can result from implementing a traffic control plan as well as strategies that can help reduce work zone … [Read more...] about Treating Potential Back-of-Queue Safety Hazards