A new macroscopic model for Variable Speed Limits

Journal article (2018)

Authors

J.R. Dominguez Frejo Team Bart De Schutter - Mechanical, Maritime and Materials Engineering
Ioannis Papamichail Technical University of Crete
Markos Papageorgiou Technical University of Crete
B.H.K. De Schutter Team Bart De Schutter - Mechanical, Maritime and Materials Engineering
Research Group
Team Bart De Schutter (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2018 J.R. Dominguez Frejo, Ioannis Papamichail, Markos Papageorgiou, B.H.K. De Schutter
DOI
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https://doi.org/10.1016/j.ifacol.2018.07.056
Freeway Traffic Control Freeway Traffic Modeling Variable Speed Limit
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Published Date

2018

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Delft Center for Systems and Control

Research Group

Team Bart De Schutter

Abstract

This paper proposes a new macroscopic model for Variable Speed Limits (VSLs), combining characteristics of previously proposed models, in order to have the capability of modeling different capacities, critical densities, and levels of compliance for links affected by speed limits. Moreover, the effects of VSLs on the fundamental diagram of traffic flow are studied concluding that, at least for the considered stretch of the A12 freeway in The Netherlands, the capacity of a freeway link is decreased (and the critical density is increased) by reducing the value of the corresponding speed limit. Finally, it is shown that the VSL-induced fundamental diagram is not triangular and that the speed limit compliance can be very low if enforcement measures are not applied.