Coordinated road-junction traffic control by dynamic programming

Heung, Tsin Hing, Ho, Tin Kin, & Fung, Yu Fai (2005) Coordinated road-junction traffic control by dynamic programming. IEEE Transactions on Intelligent Transportation Systems, 6(3), pp. 341-350.

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This paper presents a novel approach to road-traffic control for interconnected junctions. With a local fuzzy-logic controller (FLC) installed at each junction, a dynamic-programming (DP) technique is proposed to derive the green time for each phase in a traffic-light cycle. Coordination parameters from the adjacent junctions are also taken into consideration so that organized control is extended beyond a single junction. Instead of pursuing the absolute optimization of traffic delay, this study examines a practical approach to enable the simple implementation of coordination among junctions, while attempting to reduce delays, if possible. The simulation results show that the delay per vehicle can be substantially reduced, particularly when the traffic demand reaches the junction capacity. The implementation of this controller does not require complicated or demanding hardware, and such simplicity makes it a useful tool for offline studies or realtime control purposes.

Impact and interest:

33 citations in Scopus
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21 citations in Web of Science®

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Full-text downloads:

248 since deposited on 13 Oct 2010
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ID Code: 37923
Item Type: Journal Article
Refereed: Yes
Keywords: Traffic Coordination, dynamic programming, fuzzy logic control, road traffic control
DOI: 10.1109/TITS.2005.853713
ISSN: 1524-9050
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Neural Evolutionary and Fuzzy Computation (080108)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Transport Engineering (090507)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2005 IEEE
Deposited On: 13 Oct 2010 23:42
Last Modified: 29 Feb 2012 14:19

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