Adaptable robust traffic signal control for urban road networked systems with uncertain capacity
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Suh-Wen Chiou, Adaptable robust traffic signal control for urban road networked systems with uncertain capacity, 14th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP14), Dublin, Ireland, 2023.Download Item:
Abstract:
In order to effectively mitigate congestion and propagate uncertainty in road networked systems, a robust signal control with adaption to traffic dynamics is presented. A Stochastic Traffic Model (STM) is introduced to appropriately address spatial evolution of traffic congestion inside road links. An Identification of Robust Family (IRF) for Stochastic Performance Index (SPI) is proposed. A stochastic program can be proposed and efficiently solved by a variant of Bendersメ decomposition. While time-varying SPI value functions can be improved progressively by proposed adaption algorithm, the feasibility of constraints against high-consequence realization of capacity uncertainty is recursively enforced for unknown probability distribution of occurrence. Numerical experiments are performed at a real-data city road network. As compared to recently proposed the state-of-the-art traffic signal control, obtained results showed that the proposed robust signal control can exhibit sufficient gain of achieving road network effectiveness while attenuating time-varying congestion in the presence of uncertain capacity at links downstream.
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Author: Chiou, Suh-Wen; ICASP14
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14th International Conference on Applications of Statistics and Probability in Civil Engineering(ICASP14)Type of material:
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