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CALIBRATION OF CAR-FOLLOWING MODELS WITH SINGLE- AND MULTI-STEP APPROACHES

By C. Laroque, J. Himmelspach, R. Pasupathy, O. Rose, A. M. Uhrmacher and Peter Wagner

Abstract

Microscopic traffic simulation models are applied in the analysis of transportation systems for years. Nevertheless, calibration (and validation) of microscopic sub-models such as car-following and gapacceptance models is still a recent matter. The objective of the calibration is to adapt the simulation output to empirical data by adjusting the model’s parameters. However, simulation results may vary from the underlying real-world data, despite the calibration. To analyze these deviations the present paper compares two different approaches of calibration using data from a single-lane car-following experiment on a Japanese test track. It is demonstrated that the results of the two methods differ significantly. A recommendation for the more appropriate method to use is given.

Year: 2014
OAI identifier: oai:CiteSeerX.psu:10.1.1.416.4598
Provided by: CiteSeerX
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