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Accuracy of distance-based travel time decomposition in probe vehicle systems

Neumann, Thorsten (2013) Accuracy of distance-based travel time decomposition in probe vehicle systems. Journal of Advanced Transportation, 48 (8), pp. 1087-1106. Wiley. DOI: 10.1002/atr.1251 ISSN 0197-6729

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/atr.1251/abstract


Probe vehicle data are commonly used for areawide measurements of travel time in road networks. In this context, travel times usually refer to fixed edges of an underlying (digital) map. That means, measured travel times have to be transformed into so-called link travel times first. This paper analyzes a common method being applied for solving this task (distance-based travel time decomposition). It is shown that, in general, its inherent imprecision must not be neglected. Instead, it might cause a serious misinterpretation of data if potential errors in context of travel time decomposition are ignored. For this purpose, systematic as well as maximum deviations between "decomposed" and "true" link travel times are mathematically analyzed. Three examples ranging from pure theory to real world confirm the analytical findings and underline the problems resulting from distance-based travel time decomposition at local level, i.e. at individual intersections.

Item URL in elib:https://elib.dlr.de/70597/
Document Type:Article
Title:Accuracy of distance-based travel time decomposition in probe vehicle systems
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Neumann, Thorstenthorsten.neumann (at) dlr.deUNSPECIFIED
Date:16 September 2013
Journal or Publication Title:Journal of Advanced Transportation
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.1002/atr.1251
Page Range:pp. 1087-1106
Keywords:Travel time; Probe vehicle data; Distance-proportion method; Travel time decomposition; Travel time allocation; Error analysis
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - Projekt Verkehrs- und Mobilitätsmanagement (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transportation Systems > Traffic Management
Deposited By: Neumann, Dr.-Ing. Thorsten
Deposited On:30 Oct 2013 09:57
Last Modified:08 Mar 2018 19:03

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