Open AccessRoad safety analysis for high‐speed vehicle in complex environments based on the viability kernel
Author(s) -
Liu Lei,
Gao Yan,
Wang FuCheng
Publication year - 2018
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.2017.0168
Subject(s) - kernel (algebra) , computer science , automotive engineering , engineering , mathematics , combinatorics
Road safety analysis is important for vehicles that travel at high speeds. This study proposes a novel viability kernel calculation method for road safety analysis. The viability kernel can be represented by a polyhedron, which is suitable for calculation of the algorithm. This facility solves the problem of analysing the permanent admissible areas of the road with constrains and all possible input of the vehicle. First, the concepts of the viability kernel are described and a simplified vehicle model is developed. Second, the viability kernel is applied to analyse road safety for vehicles on a straight road. Third, the analyses are extended to a straight‐corner‐straight model, which can be used to simulate general road conditions. The proposed method can predict the largest safety area of the road for vehicles travelling at a high constant speed. In the future, the proposed methods can be applied to calculate the radical safe control for high‐speed vehicles in complex road circumstances.