A Nonlinear Control System for Integrated Freeway Ramp Metering
Resource
運輸計劃季刊, 33(4), 673-698
Journal
運輸計劃季刊
Journal Volume
33
Journal Issue
4
Pages
673-698
Date Issued
2004-12
Date
2004-12
Author(s)
Chang, Tang-Hsien
Chuang, Kou-CHin
Abstract
Traffic jam frequently occurs on urban freeway or experssway sections, particularly during morning and evening peak periods with heavily weaving and on-ramp demand. Congestion reduces transport efficiency and increases air pollution. With an isolated on-ramp meeting control, it will not reach optimum. In this study, we applied Taylor's expansion and chaining law to Payne's dynamic traffic flow model, then formulated a nonlinear system model for integrated ramp metering control. The objective is to maximize the system throughputs. Using the T-type linked road network of the Sun Yat-Sen Freeway and Chan-Kuo Expressway in Taipei City as a test site, a simulation analysis revealed that the proposed model was able to relieve the traffic from congestion.
Subjects
Nonlinear control
Ramp metering control
Traffic flow model
Traffic control
SDGs
Type
journal article
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