福州大学学报（自然科学版）2017，Vol.45Issue(2)：216-221,6.DOI:10.7631/issn.1000-2243.2017.02.0216
高速公路可变限速优化控制模型
The optimization of variable speed limits control model on freeway
摘要
Abstract
To settle the drawback of basic METANET model while be applied on freeway congestion section, the paper revised the speed model and flow model and proposed the modification VSL model of freeway, also figured out the varied threshold value of VSL and varied interval frequency. The pro-posed model was calibrated and validated by simulation. The simulation results shown that the proposed control can decrease total travel time by 28.6% to 33.2% and promote the total travel distance about 1.8%~3.0%, increase the total flow about 2.0% to 3.27%, which proved that the modification model was adapt and effective in implement. Also, the results shown that the most benefit can be got while the variable threshold value of VSL was 10 km · h-1 and variable interval frequency was 5 minute, which can reduce 50% traffic accidents.关键词
高速公路/可变限速模型/仿真/限速阈值/限速变化频率Key words
freeway/variable speed limits model/simulation/speed limit threshold/speed limit change frequency分类
交通工程引用本文复制引用
吴德华,林毅..高速公路可变限速优化控制模型[J].福州大学学报（自然科学版）,2017,45(2):216-221,6.基金项目
福建省自然科学基金资助项目(2016J01230) （2016J01230）
