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Dynamic representation of the fundamental diagram via Bayesian networks for estimating traffic flows from probe vehicle data

Neumann, Thorsten and Böhnke, Philipp and Touko Tcheumadjeu, Louis Calvin (2013) Dynamic representation of the fundamental diagram via Bayesian networks for estimating traffic flows from probe vehicle data. In: 16th IEEE International Conference on Intelligent Transportation Systems (ITSC 2013), pp. 1870-1875. IEEE ITSC 2013, 6.-9. Okt. 2013, Den Haag, Niederlande. ISBN 978-1-4799-2913-9

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Abstract

Area-wide measurements of traffic flows are usually not possible with today's common sensor technologies. However, such information is essential for (urban) traffic planning and control. Hence, in order to support traffic managers, this paper analyses an approach for deriving traffic flows from probe vehicle speeds, which are potentially available with a wide spatial coverage, by looking at the speed-flow relationship as known from macroscopic traffic flow theory. In this context, it proposes a stochastic representation of the fundamental diagram via Bayesian networks which also involves the temporal dependencies between the observed traffic variables. By that, better results for traffic flow estimation from probe vehicle data (PVD) are obtained than by applying traditionally fitted deterministic curves of the speed-flow function. The paper describes the relevant theoretical concepts as well as the findings of an extensive validation using real-world PVD from about 4,300 taxis in Berlin, Germany.

Item URL in elib:https://elib.dlr.de/81043/
Document Type:Conference or Workshop Item (Speech)
Title:Dynamic representation of the fundamental diagram via Bayesian networks for estimating traffic flows from probe vehicle data
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Neumann, Thorstenthorsten.neumann (at) dlr.deUNSPECIFIED
Böhnke, Philippphilipp.boehnke (at) dlr.deUNSPECIFIED
Touko Tcheumadjeu, Louis CalvinLouis.ToukoTcheumadjeu (at) dlr.deUNSPECIFIED
Date:6 October 2013
Journal or Publication Title:16th IEEE International Conference on Intelligent Transportation Systems (ITSC 2013)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1870-1875
ISBN:978-1-4799-2913-9
Status:Published
Keywords:Traffic flow, Probe vehicle data, FCD, Fundamental diagram, Bayesian networks
Event Title:IEEE ITSC 2013
Event Location:Den Haag, Niederlande
Event Type:international Conference
Event Dates:6.-9. Okt. 2013
Organizer:IEEE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Projekt Verkehrsentwicklung und Umwelt (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transportation Systems > Traffic Management
Deposited By: Neumann, Dr.-Ing. Thorsten
Deposited On:30 Oct 2013 09:56
Last Modified:31 Jul 2019 19:39

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