Traffic signal optimization: combining static and dynamic models

  • In this paper, we present a cyclically time-expanded network model for simultaneous optimization of traffic assignment and traffic signal parameters, in particular offsets, split times, and phase orders. Since travel times are of great importance for developing realistic solutions for traffic assignment and traffic signal coordination in urban road networks, we perform an extensive analysis of the model. We show that a linear time-expanded model can reproduce realistic travel times especially for use with traffic signals and we verify this by simulation. Furthermore, we show how exact mathematical programming techniques can be used for optimizing the control of traffic signals. We provide computational results for real world instances and demonstrate the capabilities of the cyclically time-expanded by simulation results obtained with state-of-the-art traffic simulation tools.

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Metadaten
Author: Ekkehard Köhler, Martin StrehlerORCiDGND
URL:http://arxiv.org/abs/1509.08709
Title of the source (English):arXiv.org
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2015
Tag:Discrete Mathematics
Number of pages:29
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Algorithmische Mathematik
Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / FG Diskrete Mathematik und Grundlagen der Informatik
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