Methodology for estimation of probable location of VRU before impact using data from post‐crash analysis

Subramanian, Hariharan S.; Mukherjee, Sudipto; Chawla, Anoop; Göhlich, Dietmar

Affiliations

¹Department of Mechanical Engineering at Indian Institute of Technology in Delhi, India

²Department of Product Development Methods and Mechatronics, Technische Universität, Berlin

Abstract and keywords

The incidence pattern of vulnerable road user (VRU) injury is modified by the transport infrastructure on the ground. Recent improvements in modelling capability introduce the possibility of evaluating performance of safety measures by incorporating a distribution instead of a single standardized test. The question addressed in this work is to estimate the probability distribution of crash initiation modes based on post‐crash observations.

A multi‐body simulation based approach of using adaptive Markov Chain Monte Carlo (MCMC) sampling techniques implemented in statistical software “R” has been used. The two input variables under study were location of VRU along the lateral axis in front of vehicle and shape of vehicle front. The observed output was the locations of head hits on vehicle front profile.

Simulation studies on VRU head crash locations from the German In‐depth Accident Study (GIDAS) with the severity of injury and the crash vehicle details have been used. These converge to a distribution with mean around the center plane of the vehicle with spread of around 30 cm in one standard deviation.

Keywords: Monte Carlo, Pedestrian crash simulation, probability distribution

Links

URL: http://www.ircobi.org/downloads/irc14/pdf_files/48.pdf

Cited Works (6)

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Cited By (2)

Year	Entry
2015	Subramanian HS, Mukherjee S, Chawla A, Goehlich D. An inverse Monte-Carlo based method to estimate pre-crash distribution for VRU safety. In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.
2015	Subramanian HS, Mukherjee S, Chawla A, Vakhil SM, Varghese M, Mohan D. Pedestrian injuries in Delhi, India: analysis of hospital data. In: Proceedings of the 2015 International IRCOBI Conference on the Biomechanics of Injury. September 9-11, 2015; Lyon, France.74-81.