Previous work demonstrated that the orientation of tire mark striations can be used to infer the braking actions of the driver [1]. An equation that related tire mark striation angle to longitudinal tire slip, the mathematical definition of braking, was presented. This equation can be used to quantify the driver’s braking input based on the physical evidence. Braking input levels will affect the speed of a yawing vehicle and quantifying the amount of braking can increase the accuracy of a speed analysis. When using this technique in practice, it is helpful to understand the sensitivity and uncertainties of the equation. The sensitivity and uncertainty of the equation are explored and presented in this study. The results help to formulate guidelines for the practical application of the method and expected accuracy under specified conditions. A case study is included that demonstrates the analysis of tire mark striations deposited during a real-world accident.
Tire Mark Striations: Sensitivity and Uncertainty Analysis
Sae Int. J. Trans. Safety
SAE 2016 World Congress and Exhibition ; 2016
Sae International Journal of Transportation Safety ; 4 , 1 ; 121-127
2016-04-05
7 pages
Conference paper
English
Tire mark striations: sensitivity and uncertainty analysis
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