Research on Congestion Mitigation Strategy Downstream Off-Ramp for Urban Expressway Based on Fuzzy Logic Method

Abstract:

As the uncertain characteristics of traffic flow in urban expressway, fuzzy control can be used as an effectual way to solve traffic problem. A fuzzy controller of signal intersection is designed for alleviating traffic congestion downstream off-ramp at the Surface Street. The overtime of green-light and the next time for green-light phase are optimized according to the queue lengths and the numbers of phase delay, and the method corresponds to a man’s decision-making process. Simulation research based on MATLAB program design is carried out and the results show that the methods are promising and the fuzzy controller have a better performance for congestion mitigation downstream off-ramp of urban expressway.

• Periodical: Advanced Materials Research (Volumes 299-300)
• Pages: 1271-1274
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.299-300.1271
• Online since: July 2011
• Authors: Xue Wen Chen
• Keywords: Fuzzy Logic Control, Simulation, Urban Expressway

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