Variable speed limit (VSL) control is a widely adopted speed management system to improve freeway operations performance. Most previous research has focused on one isolated aspect of its contribution. In this study, the performance of various VSL control strategies was compared as a combination of the following aspects: mobility, safety, and environmental impacts. The control strategies to be evaluated were selected from both state-of-the-art and practice, including the decision tree-based VSL control strategy algorithm, cell transmission model (CTM), and the METANET model, both based on VSL control strategy. The microscopic traffic simulation software VISSIM was adopted to establish an experimental traffic network based on field data. In results analysis, network-wide traffic performance implementing selected control strategies were compared to the scenario without VSL control to evaluate the control benefits in mobility, safety, and environmental impacts.
Investigation of Multi-Objective Freeway Variable Speed Limit Control Strategies
18th COTA International Conference of Transportation Professionals ; 2018 ; Beijing, China
CICTP 2018 ; 1386-1395
2018-07-02
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Variable speed limit control for severe non-recurrent freeway bottlenecks
Online Contents | 2015
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