Systematic assessment of local & global signal control policies: A methodological perspective

Guido Cantelmo, Francesco Viti, Marco Rinaldi, Chris M.J. Tampere, Mike J. Smith, Klaus Nokel

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

Traffic control performance on networks depends on the flow response to the policy adopted, which in turn contributes to determine the optimal signal settings. This paper focuses on the relationship between local and network wide traffic control policies within the combined traffic control and assignment problem. Through a full exploration of the solution space, an in depth cross comparison is performed between the well-known local policies P0 and Equisaturation, versus the global policies Maximum Throughput and Minimum Delay, to verify how the two local policies approximate the optimal settings for signalized intersections. Realistic traffic dynamics, such as congestion, multiple controllers and spillback are considered, to empirically determine the conditions under which the local policies are able to approximate global performances. After presenting the different local and global control policies, experiments are performed on simple toy networks. The complexity of the underlying network and, therefore, of the problems' boundary conditions is then increased, allowing us to showcase how the different metrics perform in different situations. Finally, conclusions on the results are drawn.

Original languageEnglish
Title of host publication2015 International Conference on Models and Technologies for Intelligent Transportation Systems, MT-ITS 2015
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages156-163
Number of pages8
ISBN (Electronic)9789633131428
DOIs
Publication statusPublished - 25 Aug 2015
Externally publishedYes
EventInternational Conference on Models and Technologies for Intelligent Transportation Systems, MT-ITS 2015 - Budapest, Hungary
Duration: 3 Jun 20155 Jun 2015

Publication series

Name2015 International Conference on Models and Technologies for Intelligent Transportation Systems, MT-ITS 2015

Conference

ConferenceInternational Conference on Models and Technologies for Intelligent Transportation Systems, MT-ITS 2015
CountryHungary
CityBudapest
Period3/06/155/06/15

Keywords

  • congestion
  • Equisaturation
  • Maximum Throughput
  • Minimum delay
  • P0
  • traffic control
  • user equilibrium

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