Modeling the impact of vehicle platooning on highway congestion: A fluid qeuing approach

Li Jin, Mladen Čičić, Saurabh Amin, Karl H. Johansson

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

Abstract

Vehicle platooning is a promising technology that can lead to significant fuel savings and emission reduction. However, the macroscopic impact of vehicle platoons on highway traffic is not yet well understood. In this article, we propose a new fluid queuing model to study the macroscopic interaction between randomly arriving vehicle platoons and the background traffic at highway bottlenecks. This model, viewed as a stochastic switched system, is analyzed for two practically relevant priority rules: proportional (or mixed) and segmented priority. We provide intuitive stability conditions, and obtain bounds on the long-run average length and variance of queues for both priority rules. We use these results to study how platoon-induced congestion varies with the fraction of platooned vehicles, and their characteristics such as intra-platoon spacing and arrival rate. Our analysis reveals a basic tradeoff between congestion induced by the randomness of platoon arrivals, and efficiency gain due to a tighter intra-platoon spacing. This naturally leads to conditions under which the proportional priority is preferred over segmented priority. Somewhat surprisingly, our analytical results are in agreement with the simulation results based on a more sophisticated two-class cell transmission model.

Original languageEnglish (US)
Title of host publicationHSCC 2018 - Proceedings of the 21st International Conference on Hybrid Systems
Subtitle of host publicationComputation and Control (part of CPS Week)
PublisherAssociation for Computing Machinery, Inc
Pages237-246
Number of pages10
ISBN (Electronic)9781450356428
DOIs
StatePublished - Apr 11 2018
Event21st International Conference on Hybrid Systems: Computation and Control, HSCC 2018 - Porto, Portugal
Duration: Apr 11 2018Apr 13 2018

Publication series

NameHSCC 2018 - Proceedings of the 21st International Conference on Hybrid Systems: Computation and Control (part of CPS Week)

Other

Other21st International Conference on Hybrid Systems: Computation and Control, HSCC 2018
CountryPortugal
CityPorto
Period4/11/184/13/18

Keywords

  • Connected and autonomous vehicles
  • Fluid queuing model
  • Smart highways
  • Stochastic switched systems
  • Vehicle platooning

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Computer Networks and Communications

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  • Cite this

    Jin, L., Čičić, M., Amin, S., & Johansson, K. H. (2018). Modeling the impact of vehicle platooning on highway congestion: A fluid qeuing approach. In HSCC 2018 - Proceedings of the 21st International Conference on Hybrid Systems: Computation and Control (part of CPS Week) (pp. 237-246). (HSCC 2018 - Proceedings of the 21st International Conference on Hybrid Systems: Computation and Control (part of CPS Week)). Association for Computing Machinery, Inc. https://doi.org/10.1145/3178126.3178146