Traffic simulation models have long been popular in modern traffic planning and operation applications. Efficient calibration of simulation models is usually a crucial step in a simulation study. However, traditional calibration procedures are often resource-intensive and time-consuming, limiting the broader adoption of simulation models. In this study, a vehicle trajectory-based automatic calibration framework for mesoscopic traffic simulation is proposed. The framework incorporates behavior models from both the demand and the supply sides of a traffic network. An optimization-based network flow estimation model is designed for demand and route choice calibration. Dimensionality reduction techniques are incorporated to define the zoning system and the path choice set. A stochastic approximation model is established for capacity and driving behavior parameter calibration. The applicability and performance of the calibration framework are demonstrated through a case study for the City of Birmingham network in Michigan.
@article{arxiv.2501.10934,
title = {Automatic Calibration of Mesoscopic Traffic Simulation Using Vehicle Trajectory Data},
author = {Ran Sun and Zihao Wang and Xingmin Wang and Henry X. Liu},
journal= {arXiv preprint arXiv:2501.10934},
year = {2025}
}