Is Calibration a Straight-Forward Task if Detailed Trajectory Data is Available?
To calibrate a model of pedestrian dynamics, the authors compare its simulation results with empirical data obtained as part of the Hermes research project. During the calibration process the authors realize that certain properties of the empirical data could only be reproduced by assuming a spatially inhomogeneous distribution of participants on the starting area with regard to their free or desired walking speeds. Changes of the parameters of the model of dynamics could not bring that agreement. The authors conclude that what they experienced is a good example for the relation between empirical data and model calibration whose complexity is usually underestimated. Thus the answer to the title question is “no”.
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Supplemental Notes:
- This paper was sponsored by TRB committee AHB45 Standing Committee on Traffic Flow Theory and Characteristics.
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Corporate Authors:
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Authors:
- Benner, Henrieke
- Kretz, Tobias
- Lohmiller, Jochen
- Sukennik, Peter
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Conference:
- Transportation Research Board 96th Annual Meeting
- Location: Washington DC, United States
- Date: 2017-1-8 to 2017-1-12
- Date: 2017
Language
- English
Media Info
- Media Type: Digital/other
- Features: Appendices; Figures; References;
- Pagination: 10p
- Monograph Title: TRB 96th Annual Meeting Compendium of Papers
Subject/Index Terms
- TRT Terms: Calibration; Data analysis; Empirical methods; Pedestrian movement; Simulation; Speed; Trajectory; Walking
- Subject Areas: Data and Information Technology; Pedestrians and Bicyclists; Planning and Forecasting;
Filing Info
- Accession Number: 01626277
- Record Type: Publication
- Report/Paper Numbers: 17-01148
- Files: PRP, TRIS, TRB, ATRI
- Created Date: Feb 21 2017 5:09PM