2014•Advanced materials researchOpen access

The Signal Timing Method for Roundabout Based on the Constraint of Left-Turn Queue Length

Tian Zi Chen, Zhi Zhou Wu

Abstract

Scientific and reasonable signal control would effectively improve the traffic efficiency and safety of roundabout. In this paper, a simplified signal timing method based on the constraint of left-turn queue length was investigated. Taking ZhuQue Roundabout for example, this paper utilized a simulation model based on VISSIM and adopted evaluation index system of capacity, saturation and average vehicle delay. By comparing the results of before and after the new timing, feasibility and effectiveness of the proposed model has been verified.

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Available abstract

Key concepts: VisSim, Roundabout, Queue, Constraint (computer-aided design), Signal timing, SIGNAL (programming language), Simulation, Control theory (sociology)