Effects of DSRC-based safety messages on heterogeneous traffic flow stability

Tenglong Li, Fei Hui, Xiangmo Zhao, Dong Ngoduy

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

1 Citation (Scopus)

Abstract

The dynamic characteristics of heterogeneous traffic flow comprising regular and connected vehicles have drawn increasing attention recently. However, the existing car-following models in connected environments commonly lack experimental data as evidence. Based on field data mining analysis results, an extended heterogeneous car-following model is proposed to investigate the effect of DSRC (dedicated short range communications)-based safety messages on traffic flow stability in this paper. The analytical stable condition of this proposed model for homogenous and heterogeneous traffic flow is obtained by stability analysis. Finally, numerical simulations are carried out to verify the theoretical analysis results. Both analytical and simulation results show that when multiple preceding vehicles' safety messages are taken into account, both traffic flow safety and stability can be improved. In addition, the traffic flow stability is enhanced with the increase of market penetration rate of connected vehicles.

Original languageEnglish
Title of host publicationCICTP 2019
Subtitle of host publicationTransportation in China - Connecting the World - Proceedings of the 19th COTA International Conference of Transportation Professionals
EditorsLei Zhang, Jianming Ma, Pan Liu, Guangjun Zhang
PublisherAmerican Society of Civil Engineers
Pages2199-2210
Number of pages12
ISBN (Electronic)9780784482292
DOIs
Publication statusPublished - 2019
Externally publishedYes
EventCOTA International Conference of Transportation Professionals (CICTP) 2019 - Nanjing, China
Duration: 6 Jul 20198 Jul 2019
Conference number: 19th
https://ascelibrary.org/doi/book/10.1061/9780784482292 (Proceedings)

Publication series

NameCICTP 2019: Transportation in China - Connecting the World - Proceedings of the 19th COTA International Conference of Transportation Professionals

Conference

ConferenceCOTA International Conference of Transportation Professionals (CICTP) 2019
Abbreviated titleCICTP 2019
CountryChina
CityNanjing
Period6/07/198/07/19
Internet address

Keywords

  • Car-following model
  • Data mining analysis
  • Heterogeneous traffic flow
  • Numerical simulation
  • Stability analysis

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