Research on Car-Following Model Considering Lateral Offset

Abstract:

The conventional models of car-following are too idealistic since they did consider that vehicles travel in middle of the lane. In order to depict the real car-following behaviors better, in this paper we present a new car-following model by introducing the minimum safe distance and proposing the concepts of maximum escape speed (MES) after taking into account the leading vehicle position in the road and the impact of the centerline separation between the leading vehicle and the following vehicle on the car-following behavior, extending the car-following model into two-dimensional model. Finally, the numerical simulation analysis was made using the built model by the Matlab simulation platform. It is found that required minimum safety distance of the presented model is less than the previous models required. Meanwhile, the model can describe some macroscopic phenomena in the actual traffic flow and can improve effectively the road capacity and smooth.

• Periodical: International Journal of Engineering Research in Africa (Volume 13)
• Pages: 71-80
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.13.71
• Online since: December 2014
• Authors: Lun Hui Xu, Sang En Hu*, Qiang Luo, Lai Yu Zhang
• Keywords: Car Following, Lateral Offset, Maximum Escape Speed, Road Capacity, Two-Dimensional Model

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