原文传递
Preparations for Field Testing of Combined Variable Speed Advisory (VSA) and Coordinated Ramp Metering (CRM) for Freeway Traffic Control - Phase I.
| 题名： | Preparations for Field Testing of Combined Variable Speed Advisory (VSA) and Coordinated Ramp Metering (CRM) for Freeway Traffic Control - Phase I. |
| 作者： | Chen, D.; Lu, X. Y.; Sladover, S. E. |
| 关键词： | California; Coordinated Ramp Metering(crm); Freeways; Ramp Control; Ramp Metering(rm); Traffic Flow; Travel Time; Vehicular Traffic Control |
| 摘要： | The objective of this project is to prepare for limited field test of a newly developed control algorithm for Coordinated Ramp Metering (CRM) in the next project. Extensive site selection has been conducted for future testing of the CRM algorithm developed in a previous project supported by the FHWA Exploratory Advanced Research (EAR) program. Two major corridors have been analyzed: I-880 in the Bay Area and SR99 in Sacramento, California. Main factors for site selection include: road geometry, traffic volume, bottleneck locations and traffic situations, traffic data quality, and availability of ramp meter facility. Two potential test sites have identified: SR99 North Bound (NB) between 47th Street and the intersection with SR50; and I-880 NB between SR237 and Auto Mall Parkway. The Performance Measurement System (PeMS) data has been used for modeling and model calibration of the two corridors in Aimsun microscopic traffic simulation. Based on the calibrated model, the CRM algorithm has been applied. Simulation has been conducted for multiple replications. Preliminary simulation results show that on average Total Travel Time (TTT) of the overall system could be reduced by 3-5%, Total Delay (TD) on the mainline could be reduced by 10-17% Total Travel Distance could be increased by 1% and Total Number of Stops could be reduced by 15-24%. The number will depend on traffic volume. The microscopic simulation results need further fine tuning and field testing at the selected site(s) in the next phase of the project. |
| 报告类型： | 科技报告 |
相关文献
- Development of Active Traffic Management Strategies for Minnesota Freeway Corridors
- Field Test of Coordinated Ramp Metering (CRM)
- Field Implementation, Testing, and Refinement of Density Based Coordinated Ramp Control Strategy.
- IMPLEMENTATION AND OPERATIONAL GUIDELINES ON COORDINATED RAMP METERING SYSTEMS. IN: COMPENDIUM: PAPERS ON ADVANCED SURFACE TRANSPORTATION SYSTEMS, 2002.
- RHODES-ITMS CORRIDOR CONTROL PROJECT
- INTEGRATED CORRIDOR TRAFFIC MANAGEMENT : FINAL EVALUATION REPORT.
检索历史
应用推荐
