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Autonomous self-regulating intersections in large-scale urban traffic networks: a Chania city case study

Michailidis Iakovos T., Manolis Diamantis, Michailidis Panagiotis, Diakaki Christina, Kosmatopoulos Ilias

Πλήρης Εγγραφή

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Περίληψη

Further deterioration of the already burdened traffic conditions is expected within the following years, especially in high population density urban regions. To cope with such problem, centralized and decentralized adaptive optimization techniques have already been proposed in literature; introducing inefficient performance though, due to the highly stochastic dynamics involved, scaling and/or model unavailability problems, as well as data transmission limitations. To confront such problems, L4GCAO, a novel, model-free, decentralized, adaptive optimization approach, has been developed for maximizing the system's overall performance, by calibrating the parameters of a given signal control strategy through decentralized self-learning elements (agents). This paper considers a realistic simulation scenario where the parameters of a signal control strategy applied at each network intersection are calibrated, to study the performance of L4GCAO. For comparison purposes, the thoroughly evaluated and verified centralized optimization counterpart approach of L4GCAO namely CAO-has also been adopted herein. The results of the study indicate that both CAO and L4GCAO present quite similar potential for improving the overall performance metric considered, with respect to a well-designed fixed time control strategy used as reference point.

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