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Variable Speed Limit Model Predictive Control Evaluation
| 题名： | Variable Speed Limit Model Predictive Control Evaluation |
| 正文语种： | 中文 |
| 作者： | Hu Hai-lin |
| 作者单位： | Beca Ltd,Wellington ity 11017,New Zealand |
| 关键词： | ITS Variable Speed Limit model analysis predictive control evaluation |
| 摘要： | A decent number of Variable Speed Limit (VSL) control algorithms and experiments have been developed and evaluated in order to improve the performance of traffic by researchers in the last decade.This study was aimed to develop an advanced algorithm of VSL strategy that can be easily implemented.The algorithm can potentially improve traffic performance on a strategic network level and squeeze more benefits for road users from the existing transportation assets and infrastructures.The study developed and evaluated a VSL strategy using a Model Predictive Control (MPC) framework.A motorway section in Wellington, New Zealand was selected as the test bed.The MPC framework feeds and analyses real time traffic information in every minute;it uses an integrated /modified mesoscopic strategic assignment model (built in SATURN) to predict traffic performance in the 3 minutes future;it utilises a mathematical control algorithm model to make VSL decisions;and it evaluates the traffic performance using a micro simulation model (built in VISSIM).The results showed that, the VSL control algorithm proposed did not have improvements on neither average travel time nor traffic capacity due to the high variability of individual drivers' travel speed. |
| 会议日期： | 20150427 |
| 会议举办地点： | 南京 |
| 会议名称： | 2015年南京第十四届亚太智能交通论坛 |
| 出版日期： | 2015-04-27 |
| 母体文献： | 2015年南京第十四届亚太智能交通论坛论文集 |
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