期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 603, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physa.2022.127801
关键词
Ramp metering; Variable speed limit; Tollbooths; Cooperative control
资金
- Natural Science Foundation of Shanghai, China [20ZR1422300]
- National Natural Science Foundation of China [71801149, 71801153]
- China Postdoctoral Science Foundation [2020M671173]
- Technical Service Platform for Vibration and Noise Testing and Control of New Energy Vehicles [18DZ2295900]
This paper proposes an optimal control method for freeways based on tollbooths lanes configuration and variable speed limit (VSL) control. The method improves traffic performance and driving safety by adjusting lane combinations and speed limits.
There are tollbooths on some freeway ramps, and toll lanes can be divided into Electronic Toll Collection (ETC), Manual Toll Collection system (MTC), ETC/MTC hybrid toll lanes and closed. The traffic capacity of different lanes is different. Different lane combinations are set to adjust the traffic flow of the ramp into the main line. Therefore, this strategy can be regarded as a kind of ramp metering (RM). This paper presents an optimal control method for freeways based on tollbooths lanes configuration and variable speed limit (VSL) control. Firstly, cellular automata model and cell transmission model are used to describe the operation of toll plazas and main line traffic flow respectively. Furthermore, the freeway control methods are constructed by using tollbooths RM (TB-RM) and TB-RM combined with main line VSL control respectively to improve the freeway traffic operation efficiency. Finally, the proposed method is simulated experimentally. Results from simulation experiments demonstrate that the proposed method (i) significantly improves the traffic performance in terms of total time spent savings; (ii) observably enhances driving safety. (C) 2022 Elsevier B.V. All rights reserved.
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