Integrated control of freeway based on pinning synchronization of complex networks

PANG Mingbao, ZHAO Bingxin

Systems Engineering - Theory & Practice ›› 2021, Vol. 41 ›› Issue (4) : 1018-1024.

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Systems Engineering - Theory & Practice ›› 2021, Vol. 41 ›› Issue (4) : 1018-1024. DOI: 10.12011/SETP2019-1350

Integrated control of freeway based on pinning synchronization of complex networks

  • PANG Mingbao, ZHAO Bingxin
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Abstract

The coordinated control of integrating variable speed limits (VSL) and multi-ramps metering for freeway based on pining synchronization of complex networks was studied. The improved cell transmission model of each segment under VSL on a freeway was established. Then each node was defined and a node coupling model was established. The coordinated controller of integrating VSL and ramps metering was designed based on pinning synchronization of complex networks, where the pinning nodes corresponding to the subsystems are used to input control signal. Total time spent calculated by the predicting module is used as the index to optimize the speed limit value. The range of inputting control signal is obtained and the ramp metering parameters are optimized in order to realize the system synchronization using the system stability condition. The controlling effects were verified via the simulation experiments. The results indicate that the advantages and disadvantages of VSL and inflow control can be integrated and the unbalanced characteristics of traffic flow spatial-temporal distribution can be utilized using the designed controller based on the proposed method. The phenomena of traffic jams can be suppressed utmost and the operating efficiency can be enhanced at an optimized control mode and range cost.

Key words

freeway / pining synchronization of complex networks / integrated variable speed limits (VSL) and multi-ramps metering / cell transmission model (CTM) / coordinated control

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PANG Mingbao , ZHAO Bingxin. Integrated control of freeway based on pinning synchronization of complex networks. Systems Engineering - Theory & Practice, 2021, 41(4): 1018-1024 https://doi.org/10.12011/SETP2019-1350

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Funding

National Natural Science Foundation of China (50478088); Natural Science Foundation of Hebei Province (E2015202266)
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