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Computing Moving and Intermittent Quene Propagation in Highway Wooks Zones, Final Report.
| 题名： | Computing Moving and Intermittent Quene Propagation in Highway Wooks Zones, Final Report. |
| 作者： | Benekohal, R. F.; Ramezani, H. |
| 关键词： | Congestion; Drivers; Highways; Lane Closures; Traffic Management; Work Zones |
| 摘要： | Drivers may experience intermittent congestion and moving queue conditions in work zones due to several reasons such as presence of lane closure, roadway geometric changes, higher demand, lower speed, and reduced capacity. The congestion and queue have spatial and temporal effects and knowing their extent is needed in finding users cost, and in selecting traffic management strategies to reducing congestion in work zones. The first objective of this study is to develop a computer program, called IntQ, to estimate delay and queue length for intermittent queues in work zones. The IntQ models intermittent arrival pattern for groups of vehicles and generates the group characteristics, such as inter-group gap and group size, from statistical distributions developed from field data for work zones. Then the groups are moved along the network under certain rules. Also the effects of traffic volume on the distributions is discussed. The second objective is to develop a computer program called MovQ to study moving queues in work zones. Inputs to MovQ are geometric, construction and demand data, and output is queue length, delay, and state of traffic. The MovQ establishes speed-flow curves for each section of a work zone and uses shockwave theory to keep track of interactions between traffic waves. The report includes discussions about computational issues, input/output data, and example problems that are solved using the programs. |
| 报告类型： | 科技报告 |
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