Variable Speed Limit Strategies Based on the Macro Hierarchical Control Traffic Flow Model

The superior traffic control system can promote the efficiency of mainstream expressway. As the effective method to smooth traffic system, the variable speed limits (VSL) strategies are discussed in an expressway traffic network. The dynamic OD estimation model is used to produce the real traffic in...

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Published in:Journal of advanced transportation 2021-06, Vol.2021, p.1-10
Main Authors: Li, Shubin, Wang, Tao, Ren, Hualing, Shi, Baiying, Kong, Xiangke, Chai, Jianyong, Wang, Xuejuan
Format: Article
Language:English
Subjects:
Algorithms
Analysis
Control algorithms
Control systems
Efficiency
Energy consumption
Highways
Kalman filters
Network management systems
Optimization
Roads & highways
Simulation
Software
Speed limits
Traffic congestion
Traffic control
Traffic engineering
Traffic flow
Traffic information
Traffic management
Traffic models
Traffic speed
Transportation
Travel time
Vehicles
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cited_by cdi_FETCH-LOGICAL-c447t-63c276ace8588fd1d510a2bf2c5e1f8b16b8405e519405bb43fe81f7ae0837d83
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container_title Journal of advanced transportation
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creator Li, Shubin
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description The superior traffic control system can promote the efficiency of mainstream expressway. As the effective method to smooth traffic system, the variable speed limits (VSL) strategies are discussed in an expressway traffic network. The dynamic OD estimation model is used to produce the real traffic information, which is loaded to the traffic network. Then, the prediction information of traffic variables and the VSL strategy are introduced to macro hierarchical control traffic flow model. A solution algorithm is further developed to find the optimal parameters of VSL by minimizing the total travel time and delay. The simulation results show that the proposed strategy perfects well, the traffic congestion is effectively alleviated, and the traffic efficiency of the road section is significantly improved. This framework can be adopted by transit managers for traffic efficiency.
doi_str_mv 10.1155/2021/9910097
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As the effective method to smooth traffic system, the variable speed limits (VSL) strategies are discussed in an expressway traffic network. The dynamic OD estimation model is used to produce the real traffic information, which is loaded to the traffic network. Then, the prediction information of traffic variables and the VSL strategy are introduced to macro hierarchical control traffic flow model. A solution algorithm is further developed to find the optimal parameters of VSL by minimizing the total travel time and delay. The simulation results show that the proposed strategy perfects well, the traffic congestion is effectively alleviated, and the traffic efficiency of the road section is significantly improved. 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source ABI/INFORM Global (ProQuest); Publicly Available Content Database; Wiley Open Access
subjects Algorithms
Analysis
Control algorithms
Control systems
Efficiency
Energy consumption
Highways
Kalman filters
Network management systems
Optimization
Roads & highways
Simulation
Software
Speed limits
Traffic congestion
Traffic control
Traffic engineering
Traffic flow
Traffic information
Traffic management
Traffic models
Traffic speed
Transportation
Travel time
Vehicles
title Variable Speed Limit Strategies Based on the Macro Hierarchical Control Traffic Flow Model
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