Freeway shockwave control using ramp metering and variable speed limits

Alfréd Csikós, István Varga, Katalin M. Hangos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this work a novel controller design method is suggested for motorway shockwave management using ramp metering and variable speed limit (VSL) control. The proposed controller has a feedforward-feedback control structure that is designed for a motorway arterial model. For the feedback design the nonlinear model predictive control is used. The feedforward control is utilized to enhance the operability of the control system to high disturbances. Two different controllers are designed: while controller A uses continuous VSL signs, VSL input values of controller B is chosen from a discrete set. For the latter, a two-step optimization is used to decrease oscillations. The designed controllers are tested in a case study, in which a total traffic breakdown situation is modeled. In the uncontrolled case, the initial perturbation leads to a traffic jam with zero traffic speed, whereas the proposed control design is capable of preventing the congestion.

Original languageEnglish
Title of host publication2013 21st Mediterranean Conference on Control and Automation, MED 2013 - Conference Proceedings
Pages1569-1574
Number of pages6
DOIs
Publication statusPublished - Oct 15 2013
Event2013 21st Mediterranean Conference on Control and Automation, MED 2013 - Platanias-Chania, Crete, Greece
Duration: Jun 25 2013Jun 28 2013

Publication series

Name2013 21st Mediterranean Conference on Control and Automation, MED 2013 - Conference Proceedings

Other

Other2013 21st Mediterranean Conference on Control and Automation, MED 2013
CountryGreece
CityPlatanias-Chania, Crete
Period6/25/136/28/13

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Keywords

  • Nonlinear model predictive control
  • Traffic breakdown
  • Traffic shockwaves

ASJC Scopus subject areas

  • Artificial Intelligence
  • Control and Systems Engineering

Cite this

Csikós, A., Varga, I., & Hangos, K. M. (2013). Freeway shockwave control using ramp metering and variable speed limits. In 2013 21st Mediterranean Conference on Control and Automation, MED 2013 - Conference Proceedings (pp. 1569-1574). [6608931] (2013 21st Mediterranean Conference on Control and Automation, MED 2013 - Conference Proceedings). https://doi.org/10.1109/MED.2013.6608931