The Event Data Recorders (EDRs), now being installed as standard equipment by several automakers, are increasingly being used as an independent measurement of crash severity, which avoids many of the difficulties of traditional crash reconstruction methods. Little has been published however about the accuracy of the data recorded by the current generation of EDRs in a real world collision. Prev...

Software projects collect and deduplicate vastly numerous crash reports from users to fix bugs efficiently. However, most existing automated methods have performance issues during large-scale clustering. We propose a rerankingbased crash report clustering method. Our method is a combination of two earlier methods. By computing similarity used in ReBucket for the crash reports that are highly si...

BACKGROUND Young and elderly drivers are reported to have markedly greater crash rates than drivers of other ages, but they travel less frequently and represent a minority of road users. Consequently, many crashes involving young or elderly drivers also involve drivers of middle age ranges who travel more frequently. PURPOSE To examine crash rates of young and elderly drivers, controlling for...

Background Traumatic brain injury (TBI) is a leading cause of death and disability. The role of red cell distribution width (RDW) as a prognostic biomarker for outcome in TBI patients is unknown. Based on the corticosteroid randomization after significant head injury (CRASH) trial database, a prognosis calculator (CRASH) has been developed for outcome prediction in TBI. The objectives of this s...

We evaluated the impact of a variety of motorcycle crash related factors, including crash type, speed limit, highway type, demographics, alcohol involvement and helmet use, on the likelihood of being hospitalized for traumatic brain injury (TBI) and subsequent injury severity and hospital resource utilization. Helmet use was found to have a strong protective effect on the likelihood of TBI acro...

car body lightening and crashworthiness are two important objectives of car design. due to their excellent performance, composite materials are extensively used in the car industries. in addition, reducing the weight of vehicle is effective in decreasing the fuel consumption. hat shape energy absorber is used in car’s doors for side impact protection. the aim of these numerical models and exper...

Introduction: This study presents a classification tree based alternative to crash frequency analysis for analyzing crashes on mid block segments of multilane arterials. Method: The traditional approach of modeling counts of crashes that occur over a period of time works well for intersection crashes where each intersection itself provides a well defined unit over which to aggregate the crash d...

Because of the fact that vehicle crash tests are complex and complicated experiments it is advisable to establish their mathematical models. This paper contains an overview of the kinematic and dynamic relationships of a vehicle in a collision. There is also presented basic mathematical model representing a collision together with its analysis. The main part of this paper is devoted to methods ...

Results: Crash frequencies are tabulated with particular reference to (a) different ages of motorcyclist, (b) the metropolitan versus non-metropolitan distinction, (c) single and multiple vehicle crashes, and (d) gender of motorcyclist. Each analysis showed a similar trend in crash frequency for age groups, with younger riders (16-29yrs) declining in crash frequency, the intermediate age group ...

OBJECTIVES The objective of the current study was to quantify the effects of the strength of US state graduated driver licensing laws and specific licensing components on the rate of teenage driver fatal crash involvements per 100,000 teenagers during 1996-2007. The strengths of state laws were rated good, fair, marginal, or poor based on a system developed previously by the Insurance Institute...