An Optimisation-Based Traffic Regulator for Metro Lines

This paper presents a new traffic regulation model for metro lines that is based on the optimization of a cost function along a time horizon. The resulting control actions modify nominal running times and dwell times in order to compensate timetable and headway deviations. The proposed quadratic programming model is suitable to include the main operation constraints efficiently: minimum interval, limits in the control actions and the typical operation criterion of preventing the actuation of signaling systems between platforms. Quadratic programming models are computationally efficient, and this allows the execution of the control loop every few seconds, and the management of long time horizons. In consequence, regulation performance and stability is improved, and the tuning of regulation parameters according to the operation requirements is simplified. The paper describes the simulation results of the proposed regulation model applied to a realistic metro line. A traffic perturbation model has been considered in order to analyze the stability of the line with different configuration parameters of the controller.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9781845640873
• Corporate Authors:

  WIT Press

  Ashurst Lodge
  Ashurst, Southampton  United Kingdom  SO40 7AA
• Authors:
  • Cucala, A P
  • Fernandez, A
  • de Cuadra, F
• Conference:
  • Urban Transport XIII. Urban Transport and the Environment in the 21st Century
  • Location: Coimbra , Portugal
  • Date: 2007-9-3 to 2007-9-5
• Publication Date: 2007

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 439-448
• Monograph Title: Urban Transport XIII. Urban Transport and the Environment in the 21st Century

Subject/Index Terms

• TRT Terms: Dwell time; Headways; Public transit; Railroad signals; Railroad traffic; Railroad traffic control; Running time; Signaling; Transit operating agencies
• Uncontrolled Terms: Predictive control
• Subject Areas: Operations and Traffic Management; Public Transportation; Railroads;

Filing Info

• Accession Number: 01081344
• Record Type: Publication
• ISBN: 9781845640873
• Files: TRIS
• Created Date: Nov 28 2007 7:40AM