Car-Following Model Calibration and Analysis of Intra-Driver Heterogeneity

Abstract:

This paper presents a methodology for car-following models calibration with vehicle trajectory data. A two-step optimization method is performed for searching the best-fit parameters of two popular car-following models, namely, the Helly model and the IDM model. The model calibration results verify the validity of the optimization method. Based on the results of calibrations, the intra-driver heterogeneity of driving behavior between the acceleration process and the deceleration process is studied. It is found that obvious intra-driver heterogeneities exist in driving behaviours between acceleration processes and deceleration processes of car-following. Besides, some criteria are proposed for the selection of sub-trajectories corresponding to both the acceleration and the deceleration processes of car-following. This work not only develops a general approach for car-following model calibration with vehicle trajectory data, but also provides insight into the intra-driver heterogeneity in car-following behaviours.

• Periodical: Advanced Materials Research (Volumes 108-111)
• Pages: 805-810
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.108-111.805
• Online since: May 2010
• Authors: Hao Wang, Wei Wang, Jun Chen
• Keywords: Calibration, Car-Following Model, Intra-Driver Heterogeneity, Vehicle Trajectory

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