Speed-volume-density relationship and capacity are key elements in modelling traffic operations, designing roadways, and evaluating facility performance. This paper uses a modified five-parameter … [Read more...] about Predicting Freeway Work Zone Capacity Distribution Based on Logistic Speed-Density Models
Highway Capacity
Merging Vehicles and Lane Speed-Flow Relationship in a Work Zone
In addition to closed merge lanes as physical bottlenecks of work zones, traffic oscillations caused by merging vehicles at multiple locations could reduce work zone capacity. This study took a … [Read more...] about Merging Vehicles and Lane Speed-Flow Relationship in a Work Zone
Capacity Models for Long-Term and Short-Term Freeway Work Zones in Germany
The paper presents results from a comprehensive study of work zone capacity on German freeways. A large number of long-time work zones with and without a reduction of the number of lanes as well as … [Read more...] about Capacity Models for Long-Term and Short-Term Freeway Work Zones in Germany
Micro-Level Analysis on Traffic Flow Parameters at Work-Zone Road Section Using Vehicular Trajectory Data
The research work is carried out to examine microscopic and macroscopic traffic parameters at work zone on high speed urban roads. Due to construction of elevated metro rail project over the study … [Read more...] about Micro-Level Analysis on Traffic Flow Parameters at Work-Zone Road Section Using Vehicular Trajectory Data
Work Zone Free Flow Speed Calculation Issues in HCM 2016
Capacity and free flow speed (FFS) are the two most important traffic characteristics that determine traffic flow conditions in work zones. Work zone capacity and FFS are also important because they … [Read more...] about Work Zone Free Flow Speed Calculation Issues in HCM 2016
Impact Assessment of Short-Term Work Zones on Intersection Capacity in New York City
New York City infrastructure is one of the oldest transportation infrastructures in the United States. Local street construction and short-term work zones are almost continuously planned events that … [Read more...] about Impact Assessment of Short-Term Work Zones on Intersection Capacity in New York City