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Method to Evaluate the Effectiveness of an Active Safety System for Cyclist Protection

Fries, Alexandra and Stoll, Johann and Pfromm, Matthias (2014):
Method to Evaluate the Effectiveness of an Active Safety System for Cyclist Protection.
In: International Cycling Safety Conference 2014, Göteborg (Sweden), 18.-19.11.2014, [Conference or Workshop Item]

Abstract

This paper presents a method for evaluating the effectiveness of a forward-looking bicyclist safety system for passenger cars. The method starts with a detailed analysis of 4286 bicycle-to-car accidents recorded between 2000 and 2013 in the German in-depth accident database GIDAS. The results of the analysis identify relevant parameters influencing bicycle-to-car-accidents which include surrounding conditions (time and location of the accident, obstruc-tion), vehicle parameters (collision speed) and cyclist parameters (helmet use, cyclist age). An aggregation of the accidents to reference scenarios is subsequently presented. With more than 60 % of all bicycle-to-car accidents a crossing cyclist is the major scenario followed by accidents between cyclists and turning vehicles and accidents in longitudinal traffic. A further investiga-tion of these scenarios is conducted by generating plots for the trajectories of the cyclists rela-tive to the vehicle. Results so far for the overall method are presented. Further steps to be taken are described. This includes deriving test scenarios of the reference scenarios, set up a risk-based assessment of the safety system, carry out a benefit assessment with simulations and the evaluation of the risk-based assessment with the simulative benefit assessment. The complete study contributes to a deeper understanding of cyclist accidents and it delivers a method for the assessment of active safety systems preventing bicycle-to-car accidents.

Item Type: Conference or Workshop Item
Erschienen: 2014
Creators: Fries, Alexandra and Stoll, Johann and Pfromm, Matthias
Title: Method to Evaluate the Effectiveness of an Active Safety System for Cyclist Protection
Language: English
Abstract:

This paper presents a method for evaluating the effectiveness of a forward-looking bicyclist safety system for passenger cars. The method starts with a detailed analysis of 4286 bicycle-to-car accidents recorded between 2000 and 2013 in the German in-depth accident database GIDAS. The results of the analysis identify relevant parameters influencing bicycle-to-car-accidents which include surrounding conditions (time and location of the accident, obstruc-tion), vehicle parameters (collision speed) and cyclist parameters (helmet use, cyclist age). An aggregation of the accidents to reference scenarios is subsequently presented. With more than 60 % of all bicycle-to-car accidents a crossing cyclist is the major scenario followed by accidents between cyclists and turning vehicles and accidents in longitudinal traffic. A further investiga-tion of these scenarios is conducted by generating plots for the trajectories of the cyclists rela-tive to the vehicle. Results so far for the overall method are presented. Further steps to be taken are described. This includes deriving test scenarios of the reference scenarios, set up a risk-based assessment of the safety system, carry out a benefit assessment with simulations and the evaluation of the risk-based assessment with the simulative benefit assessment. The complete study contributes to a deeper understanding of cyclist accidents and it delivers a method for the assessment of active safety systems preventing bicycle-to-car accidents.

Uncontrolled Keywords: Cyclist accidents, Bicycle accident analysis, Bicycle-to-car accidents, Benefit Assessment
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Ergonomics (IAD)
Event Title: International Cycling Safety Conference 2014
Event Location: Göteborg (Sweden)
Event Dates: 18.-19.11.2014
Date Deposited: 02 Dec 2015 08:07
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