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Quality of Floating Car Data

Sohr, Alexander and Brockfeld, Elmar and Krieg, Sascha (2010) Quality of Floating Car Data. In: Conference Proceedings, paper nr 02392. www.digitalpapers.org. 12th World Conference on Transport Research (WCTR), 11.-15.07.2010, Lissabon, Protugal.

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Abstract

Meanwhile, Floating Car Data (FCD) is a widely available and affordable data source for traffic surveillance. The German Aerospace Center, Institute of Transportation Systems (DLR-TS) receives FCD from taxi-fleets ranging from 300 to 4000 vehicles from various German and European cities since the year 2002. To extract common traffic variables like travel times or travel speeds and generate traffic information out of it, the raw GPS data of the vehicles are matched to a digital road network. However, compared to data from inductive loops, where each vehicle passing a loop generates data and the whole traffic flow is covered, the FCD represent only singular measurements. Thus, they are very noisy (especially when passing signalized intersections) and typically need to be aggregated to yield useful information. This means, a single delivered value is not very reliable and does not necessarily represent the state of the traffic flow on the according street segment. Data from some vehicles have to be aggregated and smoothed for some time interval and/or space to obtain reliable traffic information.

Item URL in elib:https://elib.dlr.de/65978/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Quality of Floating Car Data
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sohr, Alexanderalexander.sohr (at) dlr.deUNSPECIFIED
Brockfeld, Elmarelmar.brockfeld (at) dlr.deUNSPECIFIED
Krieg, Saschasascha.krieg (at) onlinehome.deUNSPECIFIED
Date:July 2010
Journal or Publication Title:Conference Proceedings, paper nr 02392
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:www.digitalpapers.org
Status:Published
Keywords:Floating Car Data, Traffic Management, Fleet-Size, Sample-Interval, Data- Quality, Aggregation, Quality-Definition for FCD
Event Title:12th World Conference on Transport Research (WCTR)
Event Location:Lissabon, Protugal
Event Type:international Conference
Event Dates:11.-15.07.2010
Organizer:Instituto Superior Tecnico (IST), Lissabon
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 - Methodenentwicklung (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transportation Systems > Traffic Management
Deposited By: Sohr, Alexander
Deposited On:02 Nov 2010 11:55
Last Modified:31 Jul 2019 19:29

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