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Identifying conflict clusters of cyclists at a roundabout by automated traffic surveillance

Saul, Hagen and Junghans, Marek and Hoffmann, Ragna (2016) Identifying conflict clusters of cyclists at a roundabout by automated traffic surveillance. Expert Symposium on Accident Research (ESAR) 2016, 9.-10.6.2016, Hannover, Deutschland.

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Abstract

Cyclists are more likely to be injured in fatal crashes than motorised vehicles. To gain detailed and precise behav-ioural data of road users, i.e. trajectories, a measuring campaign was conducted. Therefore, a black-spot for accidents with cyclists in Berlin, Germany was selected. The traffic has been detected by a fully automated traffic video analysis system continuously for twelve hours. The video surveillance system is capable of automatically extracting trajectories, classifying road user types and precise determining and positioning of conflicts and accidents. Additionally, pre-conflict and pre-accident situations could be analysed to provide further in-depth understanding of accident causation. The evaluation of the measuring campaign comprised the investigation of traffic parameters, e.g. traffic flow, as well as traffic-safety related parameters based on Surrogate Safety Measures (SSM). Furthermore, the spatial and temporal distributions of conflicts involving cyclists were determined. As a result, three possible conflict clusters could be identified, of which one cluster could be confirmed by detailed video analysis, showing conflicts caused by right turning vehicles.

Item URL in elib:https://elib.dlr.de/103901/
Document Type:Conference or Workshop Item (Speech)
Title:Identifying conflict clusters of cyclists at a roundabout by automated traffic surveillance
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Saul, Hagenhagen.saul (at) dlr.deUNSPECIFIED
Junghans, Marekmarek.junghans (at) dlr.deUNSPECIFIED
Hoffmann, Ragnaragna.hoffmann (at) dlr.deUNSPECIFIED
Date:June 2016
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Traffic safety, cyclists, conflicts, roundabout
Event Title:Expert Symposium on Accident Research (ESAR) 2016
Event Location:Hannover, Deutschland
Event Type:international Conference
Event Dates:9.-10.6.2016
Organizer:Hannover Medical School
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 - I.MoVe (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transportation Systems
Deposited By: Saul, Hagen
Deposited On:18 Jul 2016 11:45
Last Modified:18 Jul 2016 11:45

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