Results 251 to 260 of about 180,150 (303)
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Accident Reconstruction Using Process Trees
Risk and Safety Assessments: Building Viable Solutions, 1995Abstract Following a serious accident, there are fragmentary and often conflicting observations and physical evidence available to analysts investigating the incident. This paper describes a systematic approach to identifying the causes and progression of an actual large-scale accident using process-tree methodology.
Eisenhawer, S.W., Bott, T.F.
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Presentation Tools for Accident Reconstruction
SAE Technical Paper Series, 1987<div class="htmlview paragraph">A graphic artist with training in engineering and the sciences can be an essential member of the accident reconstruction team. With his general technical knowledge and his experience with visual presentations, he can provide the reconstructionist with valuable support in preparing presentations for lay or technical
Gregory R. Simmons, Rhonda G. Simmons
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Sensitivity of Accident Reconstruction Calculations
SAE Technical Paper Series, 1998<div class="htmlview paragraph"><i>A number of simplistic formulae, based on particle dynamics, energy, and momentum methods are routinely employed by accident reconstructionists to calculate vehicle speeds immediately prior to impact. It is almost always the case that scene evidence and other information regarding important variables ...
L. D. Metz, L. G. Metz
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Accident/Incident Reconstruction and Visualization
2018 Joint Rail Conference, 2018Factual evidence from locomotive event data recorders (EDR), locomotive image data recorders, accident site surveys, witness marks, rail equipment, track structure, photographs, video cameras, AEI readers, hot wheel or hot bearing detectors, wayside signal bungalows, train consist documents, and radio communication is integrated, validated, and ...
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Sample-Based Bayesian Accident Reconstruction
Journal of Transportation Safety & Security, 2009In accident reconstruction, information derived from samples of crash tests can on occasion replace subjective prior information reflecting expert opinion. A method for accomplishing this, based on a straightforward application of Bayesian reasoning as used in statistics, is applied to three-accident scenarios: estimating critical speeds from yaw marks,
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Friction Applications in Accident Reconstruction
SAE Technical Paper Series, 1983<div class="htmlview paragraph">The determination of appropriate friction coefficient values is an important aspect of accident reconstruction. Tire-roadway friction values are highly dependent on a variety of physical factors. Factors such as tire design, side force limitations, road surface wetness, vehicle speed, and load shifting require ...
Charles Y. Warner +3 more
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The Vocabulary of Accident Reconstruction
SAE Technical Paper Series, 1989<div class="htmlview paragraph">Vehicular accidents occur in everyday life. Their degree of severity is often perceived by the general public based on the amount of human bodily injuries sustained. Nevertheless, accident reconstructionists measure the degree of severity of vehicular accidents by calculating terms that are called Collision ...
Michael J. Sens +4 more
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Crush Energy in Accident Reconstruction
SAE Technical Paper Series, 1986<div class="htmlview paragraph">Vehicle accident reconstruction methods based on deformation energy are argued to be an increasingly valuable tool to the accident reconstructionist, provided reliable data, reasonable analysis techniques, and sound engineering judgement accompany their use.
Charles E. Strother +3 more
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Stereoscopic Animation for Accident Reconstruction
SAE Technical Paper Series, 1993<div class="htmlview paragraph">Stereoscopic animation is presented. The fundamentals behind the technology are shown to be rooted in common video hardware and software. The elements of programming for separating an animation into its components and creating three-dimensional frames are described in principle.
Richard W. McLay +2 more
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Photographic Techniques for Accident Reconstruction
SAE Technical Paper Series, 1985<div class="htmlview paragraph">The accuracy of an accident reconstruction depends on the quality and quantity of the data available from which to make an evaluation. With the majority of ground transportation accidents, by the time a reconstruction is sought the only available data consists of the police report and photographs of the scene and ...
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