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Stochastic Optimal-Control Approach to Automatic Incident-Responsive Coordinated Ramp Control

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2 Author(s)
Jiuh-Biing Sheu ; Inst. of Traffic & Transp., Nat. Chiao Tung Univ., Taipei ; Mei-Shiang Chang

This paper presents a stochastic optimal-control-based approach to real-time incident-responsive coordinated ramp control. The proposed coordinated ramp-control methodology includes two major functions, i.e., 1) identification of control-zone-based congestion patterns using the modified generalized-sequential-probability-ratio-testing technology and 2) group-based ramp control using stochastic optimal control coupled with extended Kalman filtering technologies. With the aid of the Paramics microscopic traffic simulator, numerical studies under various simulated incident-induced congestion conditions were conducted. Corresponding numerical results indicate the feasibility of the proposed ramp-control method in responding to diverse lane-blocking incident-induced traffic-congestion conditions

Published in:

IEEE Transactions on Intelligent Transportation Systems  (Volume:8 ,  Issue: 2 )