Traffic Signal Optimization Using Cyclically Expanded Networks

Authors Ekkehard Köhler, Martin Strehler



PDF
Thumbnail PDF

File

OASIcs.ATMOS.2010.114.pdf
  • Filesize: 0.52 MB
  • 16 pages

Document Identifiers

Author Details

Ekkehard Köhler
Martin Strehler

Cite AsGet BibTex

Ekkehard Köhler and Martin Strehler. Traffic Signal Optimization Using Cyclically Expanded Networks. In 10th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS'10). Open Access Series in Informatics (OASIcs), Volume 14, pp. 114-129, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2010)
https://doi.org/10.4230/OASIcs.ATMOS.2010.114

Abstract

Traditionally, the coordination of multiple traffic signals and the traffic assignment problem in an urban street network are considered as two separate optimization problems. However, it is easy to see that the traffic assignment has an influence on the optimal signal coordination and, vice versa, a change in the signal coordination changes the optimal traffic assignment. In this paper we present a cyclically time-expanded network and a corresponding mixed integer linear programming formulation for simultaneously optimizing both the coordination of traffic signals and the traffic assignment in an urban street network. Although the new cyclically time-expanded network provides a model of both traffic and signals close to reality, it still has the advantage of a linear objective function. Using this model we compute optimized signal coordinations and traffic assignment on real-world street networks. To evaluate the practical relevance of the computed solutions we conduct extensive simulation experiments using two established traffic simulation tools that reveal the advantages of our model.
Keywords
  • dynamic flow
  • traffic optimization
  • traffic signals

Metrics

  • Access Statistics
  • Total Accesses (updated on a weekly basis)
    0
    PDF Downloads
Questions / Remarks / Feedback
X

Feedback for Dagstuhl Publishing


Thanks for your feedback!

Feedback submitted

Could not send message

Please try again later or send an E-mail