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Empirical description of car-following

Wagner, Peter (2005) Empirical description of car-following. In: Traffic Granular Flow 2003 Proceedings. Springer. Traffic And Granular Flow, 2003-09, Delft, Niederlande.

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Abstract

This contribution reports a recently recorded data-set that helps to understand the car-following process better. Since the empirical basis of most traffic flow models can be called weak, these findings may help to design better models. They demonstrate, that the process of car-following seems to have a very interestic stochastic dynamics. Especially, and different from most of the existing models the data show clearly that car following cannot be described by a noisy fixed point dynamics. This is because the acceleration of the cars is smooth and roughly constant for a certain time, with fast changes to a new value at so called action points. Furthermore, the data can be used for calibration and validation purposes of the various models. This has been done with very interesting results indicating that all the models tested behave very similar and cannot describe the data better than with 15 % difference between models and data.

Document Type:Conference or Workshop Item (Paper)
Additional Information:Invited presentation to the Traffic And Granular Flow conference
Title:Empirical description of car-following
Authors:
AuthorsInstitution or Email of Authors
Wagner, PeterUNSPECIFIED
Date:2005
Journal or Publication Title:Traffic Granular Flow 2003 Proceedings
Refereed publication:Yes
In ISI Web of Science:No
Editors:
EditorsEmail
Hoogendoorn, S.UNSPECIFIED
Schreckenberg, M.UNSPECIFIED
Publisher:Springer
Keywords:calibration/validation, microscopic traffic flow models, phase transitions in traffic flow
Event Title:Traffic And Granular Flow
Event Location:Delft, Niederlande
Event Type:international Conference
Event Dates:2003-09
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Transport
HGF - Program Themes:other
DLR - Research area:Transport
DLR - Program:V VR - Verkehrsforschung
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transport Research
Deposited By: Andrea Dumong
Deposited On:04 Jan 2006
Last Modified:14 Jan 2010 20:34

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