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Speed limit and ramp meter control for traffic flow networks

Abstract : The control of traffic flow can be related to different applications. In this work, we introduce how to manage variable speed limits combined with coordinated ramp metering within the framework of the LWR net-work model. Following a "first discretize then optimize" approach, we derive the first order optimality system and explain the switch of speeds at certain fixed points in time and the boundary control for the ramp metering as well. Sequential quadratic programming methods are used to solve the control problem numerically. For application purposes, we present experimental setups where variable speed limits are used as a traffic guidance system to avoid traffic jams on highway interchanges and on-ramps.
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https://hal.inria.fr/hal-01081762
Contributor : Paola Goatin <>
Submitted on : Monday, November 10, 2014 - 10:44:30 PM
Last modification on : Thursday, May 20, 2021 - 9:12:01 AM
Long-term archiving on: : Wednesday, February 11, 2015 - 3:41:24 PM

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  • HAL Id : hal-01081762, version 1

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Paola Goatin, Simone Göttlich, Oliver Kolb. Speed limit and ramp meter control for traffic flow networks. Engineering Optimization, Taylor & Francis, 2016, 48 (7), pp.1121-1144. ⟨hal-01081762⟩

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