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This textbook edition is a collection of the most important techniques and definitions essential for developing an accurate picture of motor vehicle collisions. This textbook is intended to aid investigators by providing them with necessary techniques for collecting information to save lives and reduce monetary losses due to automobile collisions. It is the culmination of 73 years of progressive development of a body of information on systematic traffic-accident investigation. The book contains multiple illustrations, diagrams, and sketches showing the various aspects of data collection and interpretation. The information collected in a collision investigation is used by administrators to make the highway transportation system safer, as data show that motor vehicle collisions kill more Americans between the ages of 1 and 19 than any other cause. This book contains 11 chapters covering the subjects of preparation for traffic collision investigation, information from and about people, information from vehicles, information from roads, measuring and mapping the collision scene, photographing the collision scene and damaged vehicles, lamp examination for "on" or "off" in vehicle collisions, tire examination after motor vehicle collisions, photogrammetry for collision analysis, understanding vehicle behavior in collisions, and highway/rail grade crossing collision investigation. In conclusion, it is noted that this book will contribute to the improvement of the investigation of motor vehicle related collisions, the prosecution and defense of those related to such events, and the protection of the public welfare.
Accident investigation/reconstruction is more than just a job or even a profession; it is more art than science and requires a dedication greater than a commitment of time. It takes constant reading, study, and analysis of accident information and case reconstructions to keep improving your performance, both in the field and in the courtroom.
This expanded and updated third edition continues to be an essential reference volume in regards to the principles and techniques of traffic crash investigation. One of the most important phases of any investigation into a traffic crash is that which is conducted at the scene. The traffic crash investigator must be aware of his or her responsibilities and know how to properly fulfill them from the time of being advised of a crash to the time the report is completed based on the on-scene investigation. This manual sets out in detail the requisites for a properly conducted crash investigation by delineating the types of evidence to look for and how to recognize, interpret, gather, and record evidence such as skid marks, yaw marks, roadway and vehicle marks and damages, and environmental, human, and mechanical factors. Only by understanding the principles presented in the text will the objectives of a traffic crash investigation be met: what happened, where the crash occurred, why the crash occurred, and who was involved. The manual covers in both written and illustrative form those situations that confront the investigator conducting a technical crash investigation. An important introduction to scientific speed analysis based on thorough at-scene investigation is provided. Mathematical equations and examples are completed in both the United States or Imperial and metric (S.I.) measurement systems. The book is generously illustrated and substantial appendices provide helpful mathematical tables. This invaluable resource will meet the needs of law enforcement officers, insurance adjusters and investigators, private investigators, lawyers, judges, legal investigators, and instructors and students involved in cadet or advanced traffic crash investigation programs. This new edition will be appreciated by all those charged with the responsibility for investigating traffic crashes, interpreting data, and presenting evidence based on sound analysis.
The screech of rubber against asphalt. And then the crash: a violent two-car collision resulting in a twisted mass of metal, plastic, and glass-and worse, the deaths of both drivers.Accident reconstruction is but one phase of road traffic fatality (RTF) cases. Even as police officers draw their last diagram, interview their last witness, and recons
This two-volume text explains the law underlying motor vehicle accident reconstruction and the way to present physical evidence most effectively. It is written for trial lawyers by the same scientists and engineers used as experts in court.
Over 200 must-have accident reconstruction formulas at your fingertips in this revised Third Edition. This unique resource is designed to provide, in an easy to use format, the majority of the equations needed for accident reconstruction and investigation. Designed for flexibility and ease of use, each equation is expressed in three formats: algebraic; modified long form; and spreadsheet format. Formulas and constants for converting between metric and imperial units are provided for worldwide use.