On-line Traffic Signal Control Scheme with Real-time Delay Estimation Technology

Henry X. Liu, Jun S. Oh, Seri Oh, Liany Chu and Will Recker

Institute of Transportation Studies, Research Reports, Working Papers, Proceedings from Institute of Transportation Studies, UC Berkeley

Abstract: This paper presents an on-line signal control scheme integrated with the real-time intersection delay estimation technology. The primary goal of this study is to design a complementary optimization module to the existing controller to minimize the total delay experienced by traffic and improve the system performance at the signalized intersections. This paper proposes a feedback control algorithm that optimizes the signal timing plan based on delay estimated via vehicle re-identification technology. Main thrust of the algorithm is on-line control capability utilizing direct delay measures. A description of overall signal control system architecture and optimization algorithm is given in this paper. Extensive simulation experiments are preformed with a high-performance microscopic traffic simulation program, Paramics, and the preliminary results have proved the promising properties of our proposed system.

Keywords: vehicle re-identification; intersection delay estimation; traffic-responsive signal control; signal plan optimization (search for similar items in EconPapers)
Date: 2001-06-01
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