Identification of Hazardous Road Locations on the basis of jerks

Niels Agerholm, Robin Jensen, Camilla Sloth Andersen

Research output: Contribution to conference without publisher/journalPaper without publisher/journalResearchpeer-review


The dark figures for the Danish traffic safety have increased for decades and are now around 91%. As the Hazardous Road Location (HRL) identification, a cornerstone in the traffic safety work, is based on the registered accidents, the identification is increasingly more random and uncertain. Therefore, it is investigated if GPS data from cars can be used to detect potential HRLs (PHRL). The hypothesis is that concentration of jerks, which is the derivative of the deceleration, can be used for identification of PHRL and that these are better for this task than deceleration. The study is based on data from three months of driving by 380 cars, which is equivalent to a distance of 1.9 million km. This indicates that concentrations of decelerations are located where there are high traffic volumes, but not that the design and furniture of the road on the location can explain an HRL. This also indicates that concentrations of jerks can be found where the road has safety problems or is inappropriately designed. This is supported by literature dealing with this topic. On the other hand, jerks are very sensitive to unevenness in the road surface, and data from these locations must be removed in order to have reliable identification on the basis of jerks. The number of included decelerations and jerks is too low to clarify if HRLs can be identified from jerks.
Original languageEnglish
Publication date2015
Number of pages17
Publication statusPublished - 2015
EventICTCT - Ashdod, Ashdod, Israel
Duration: 29 Oct 201530 Oct 2015
Conference number: 28



Bibliographical note

28th Workshop, 29-30 October 2015, Ashdod, Israel.

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