Interactive procedure for Equilibrium Network Traffic Signal Setting

Interactive procedure for Equilibrium Network Traffic Signal Setting

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Article ID: iaor1993248
Country: United States
Volume: 25A
Issue: 5
Start Page Number: 241
End Page Number: 249
Publication Date: Sep 1991
Journal: Transportation Research. Part A, Policy and Practice
Authors: , ,
Abstract:

The Equilibrium Network Traffic Signal Setting problem is an open research area. It can be approached using global optimization models or iterative procedures. In this paper, after a brief review of the state of the art, the main characteristics of the iterative procedure ENETS are described. In this procedure, traffic signal setting is performed in two successive steps: green timing and scheduling at each junction, and signal coordination on the network. Green timing and scheduling at a single junction is based on a mixed-binary linear program with capacity factor maximization. Signal coordination for the whole network is performed by solving a discrete programming model with total delay minimization. The flow assignment stage refers to the separable user equilibrium model with fixed demand, and uses a feasible direction algorithm, which can also be adopted to cover the cases of elastic demand and/or asymmetric equilibrium. An experimental test of ENETS on a small network and a graphical explanation of the procedure are described and discussed.

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