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A Study on Correlation Between Skid Distance and Pre-Braking Speed  

Jeong, U-Taek (도로교통공단 본부)
O, Yeong-Tae (아주대학교 환경건설교통공학부)
Park, Yeong-Su (경찰청 교통안전담당관실 사고분석계)
Ryu, Tae-Seon (도로교통공단 본부 사고조사처)
Publication Information
Journal of Korean Society of Transportation / v.29, no.3, 2011 , pp. 115-122 More about this Journal
Abstract
This paper investigates the accuracy of the vehicle pre-braking speed estimated based upon measured skidding distance. Driver ordinarily takes sudden braking when urgent situation is developed in the front or when the driver is involved in an unexpected situation, and the driver may be inflicted upon an accident depending on the required stopping distance. Among factors influencing the stopping distance of vehicle such as recognition response time of driver, performance of vehicle's braking device, and state of road surface etc, pre-braking speed is seemingly the most important influencing factor. Currently, in the investigating section of traffic accidents, the state of overspeed is determined by the pre-skidding speed calculated based on the length of skid mark. In order to identify the accurate cause of the accident, it is strongly recommended that estimation of pre-braking speed should be estimated taking into account speed reduction during transient time. In this study, we propose a method for estimating more accurate exact speed information of vehicle at the time of traffic accident. The outcomes from this study potentially help better understanding of the characteristics of vehicle for traffic safety in the future.
Keywords
Skidding Distance; Pre-braking Speed; Skid Mark; Braking Distance; Braking Test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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