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Traffic Safety at German Roundabouts—A Replication Study

Leich, Andreas and Fuchs, Julian and Srinivas, Gurucharan and Niemeijer, Joshua and Wagner, Peter (2022) Traffic Safety at German Roundabouts—A Replication Study. Safety. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/safety8030050. ISSN 2313-576X.

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Official URL: https://www.mdpi.com/2313-576X/8/3/50


Roundabouts are well-known for their ability to improve upon traffic safety, especially for motorized traffic. An in-depth analysis on this topic is known from previous work. It was found that different types of roundabouts have different levels of safety. The work at hand is a replication study for a previous study in this regard. It uses a mix of traditional and a Machine Learning (ML)-based approach, expands on the previous results and replicates some of the previous findings. This was possible especially by using a factor of 10 more roundabouts in the analysis, with considerably less manual intervention. Furthermore, this study could also draw some additional conclusions regarding the safety of bicyclists, which were not included in the original study. Finally, by using cross-validation techniques, a kind of minimal model could be established that needs fewer factors and achieves better prediction quality than straightforward glm models.

Item URL in elib:https://elib.dlr.de/189130/
Document Type:Article
Title:Traffic Safety at German Roundabouts—A Replication Study
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Leich, AndreasUNSPECIFIEDhttps://orcid.org/0000-0001-5242-2051UNSPECIFIED
Srinivas, GurucharanUNSPECIFIEDhttps://orcid.org/0000-0001-5151-9150UNSPECIFIED
Niemeijer, JoshuaUNSPECIFIEDhttps://orcid.org/0000-0002-2417-8749UNSPECIFIED
Wagner, PeterUNSPECIFIEDhttps://orcid.org/0000-0001-9097-8026UNSPECIFIED
Date:6 July 2022
Journal or Publication Title:Safety
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Series Name:MDPI Safety
Keywords:road safety; crash rates; traffic safety; roundabouts; machine learning
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - D.MoVe (old)
Location: Berlin-Adlershof , Braunschweig
Institutes and Institutions:Institute of Transportation Systems
Institute of Transportation Systems > Information Gathering and Modelling, BA
Institute of Transportation Systems > Design and Evaluation of Mobility Solutions, BA
Institute of Transportation Systems > Cooperative Systems, BS
Deposited By: Leich, Dr.-Ing. Andreas
Deposited On:03 Nov 2022 07:16
Last Modified:03 Nov 2022 07:16

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