Open AccessVehicle safety analysis at non‐signalised intersections at different penetration rates of collision warning systems
Author(s) -
Liu Yicong,
Wang Jianqiang,
Chen Chaoyi,
Xu Qing,
Li Lingxi
Publication year - 2020
Publication title -
iet intelligent transport systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.579
H-Index - 45
eISSN - 1751-9578
pISSN - 1751-956X
DOI - 10.1049/iet-its.2019.0505
Subject(s) - collision , intersection (aeronautics) , warning system , penetration rate , intelligent transportation system , lane departure warning system , engineering , transport engineering , simulation , matlab , market penetration , computer science , automotive engineering , computer security , telecommunications , geotechnical engineering , electrical engineering , operating system
The market penetration of intelligent vehicles is a long‐term process. In recent years, significant attention has been paid to the influence of technology market penetration rate (MPR) on efficiency at signalised intersections, but little attention has been given to such an influence on safety at non‐signalised intersections. In this study, the influence of the intersection collision warning (ICW) system MPR on safety at non‐signalised intersections is investigated. The authors built a Matlab‐based simulation platform where an ICW algorithm was implemented. The simulation was firstly conducted to verify their models. Then the simulation results of different MPRs were obtained and compared statistically. Collision probability, conflict index, and collision rate were analysed for safety evaluation. The overall results showed that vehicle safety at non‐signalised intersections improves with the increase of the ICW system MPR. Without considerations of inappropriateness and otherness of driver reaction to warnings, when the MPR is 20% and all vehicles are connected by vehicle‐to‐everything, the collision probability, conflict index, and collision rate can be reduced by around 20, 20, and 35%, respectively. The simulation method can establish a mapping relation between the ICW system MPRs and vehicle safety indices at non‐signalised intersections.