This study investigated some of the issues in capacity, queue length, and delay estimation in work zones. In particular, the current methods for analyzing congestion in work zones are examined. … [Read more...] about Determining Queue and Congestion in Highway Work Zone Bottlenecks
Traffic Queuing
Evaluation of the Effectiveness of a Variable Advisory Speed System on Queue Mitigation in Work Zones
Variable Advisory Speed Systems (VASS) provide drivers with advanced warning regarding traffic speeds downstream to help them make better decisions. Vehicle use on highways is increasing and the need … [Read more...] about Evaluation of the Effectiveness of a Variable Advisory Speed System on Queue Mitigation in Work Zones
Behavior Study of Merge Practices for Drivers at Work Zone Closures
The purpose of this project was to determine which driver behaviors result in the greatest reduction of capacity with work zone lane closures. Traffic and safety experts believe that driver behaviors, … [Read more...] about Behavior Study of Merge Practices for Drivers at Work Zone Closures
A Spatial Queuing Approach to Optimize Coordinated Signal Settings to Obviate Gridlock in Adjacent Work Zones
Gridlock is defined when traffic comes to a complete halt inducing huge delays. If a work zone on a two-lane two-way highway is set up, in which one of the traffic lanes is closed for maintenance road … [Read more...] about A Spatial Queuing Approach to Optimize Coordinated Signal Settings to Obviate Gridlock in Adjacent Work Zones
Work Zone Queue Length and Delay Methodology
Development of reliable strategies to overcome adverse mobility impacts of highway work zones requires accurate computation of delay and queues in work zones. This paper presents a methodology for … [Read more...] about Work Zone Queue Length and Delay Methodology
Low-Cost Portable Video-Based Queue Detection for Work-Zone Safety
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