A collaborative reinforcement learning approach to urban traffic control
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Citation:As'ad Salkham, Raymond Cunningham, Anurag Garg, and Vinny Cahill., A collaborative reinforcement learning approach to urban traffic control, Proceedings of the Web Intelligence and Intelligent Agent Technology, 2008. WI-IAT '08. IEEE/WIC/ACM International Conference on, IEEE/WIC/ACM International Conference on Intelligent Agent Technology: IAT '08, Sydney, NSW, 9-12 Dec, 2, IEEE Computer Society, 2008, 560-566
The high growth rate of vehicles per capita now poses a real challenge to efficient Urban Traffic Control (UTC). An efficient solution to UTC must be adaptive in order to deal with the highly-dynamic nature of urban traffic. In the near future, global positioning systems and vehicle-tovehicle/ infrastructure communication may provide a more detailed local view of the traffic situation that could be employed for better global UTC optimization. In this paper we describe the design of a next-generation UTC system that exploits such local knowledge about a junction?s traffic in order to optimize traffic control. Global UTC optimization is achieved using a local Adaptive Round Robin (ARR) phase switching model optimized using Collaborative Reinforcement Learning (CRL). The design employs an ARR-CRL-based agent controller for each signalized junction that collaborates with neighbouring agents in order to learn appropriate phase timing based on the traffic pattern. We compare our approach to non-adaptive fixed-time UTC system and to a saturation balancing algorithm in a largescale simulation of traffic in Dublin?s inner city centre. We show that the ARR-CRL approach can provide significant improvement resulting in up to ~57% lower average waiting time per vehicle compared to the saturation balancing algorithm.
Other Titles:Proceedings of the Web Intelligence and Intelligent Agent Technology, 2008. WI-IAT '08. IEEE/WIC/ACM International Conference on
IEEE/WIC/ACM International Conference on Intelligent Agent Technology: IAT '08
Publisher:IEEE Computer Society