Impacts of Autonomous Vehicles on the Characteristics of Mixed Traffic Flow Based on Cellular Automata

Zaichun Xie, Fan Ding, Jiankun Peng, Huachun Tan, Bin Ran

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper proposes a mixed traffic flow model based on the cellular automata to study autonomous vehicle's impacts on the characteristics of traffic flow on a three-lane segment. The analysis to the simulation results showed that when the traffic density reaches a certain value, the penetration rate of autonomous vehicles has significant impact on the speed of the mixed traffic flow. However, the spatial speed variance, braking rate, and lane changing rate all develop in the same way with the increase of the penetration rate, which rise firstly and then falls. Besides, the spatial speed variance of the mixed traffic flow is generally larger than that of the pure regular vehicle traffic flow, which indicates that autonomous vehicles amplify the speed dispersion.

Original languageEnglish
Title of host publicationCICTP 2020
Subtitle of host publicationAdvanced Transportation Technologies and Development-Enhancing Connections - Proceedings of the 20th COTA International Conference of Transportation Professionals
EditorsHaizhong Wang, Heng Wei, Lei Zhang, Yisheng An
PublisherAmerican Society of Civil Engineers (ASCE)
Pages457-469
Number of pages13
ISBN (Electronic)9780784482933
DOIs
Publication statusPublished - 2020
Externally publishedYes
Event20th COTA International Conference of Transportation Professionals: Advanced Transportation Technologies and Development-Enhancing Connections, CICTP 2020 - Xi'an, China
Duration: 14 Aug 202016 Aug 2020

Publication series

NameCICTP 2020: Advanced Transportation Technologies and Development-Enhancing Connections - Proceedings of the 20th COTA International Conference of Transportation Professionals

Conference

Conference20th COTA International Conference of Transportation Professionals: Advanced Transportation Technologies and Development-Enhancing Connections, CICTP 2020
Country/TerritoryChina
CityXi'an
Period14/08/2016/08/20

Keywords

  • Autonomous vehicles
  • Cellular automata
  • Microscopic traffic simulation
  • Mixed traffic
  • Penetration rate

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