 Forensic Engineering The following can be done in the reconstruction of the scene of vehicle accidents:
* Tyre examination * Photography for the expert report * Measurement of relevant features of the scene for an explanatory plan of the scene * Identification of possibilities, probabilities and contributing factors * Description of the dynamic behaviour of vehicles in accident situations * Application of Mathematics and Physics (i.e. speed calculations, momentum principles, energy principles, vehicle dynamics and occupant behaviour during collisions) * Examination of heavy vehicle accidents and multiple vehicle accidents
Minimum requirements of the expert report:
SCENE
* A complete description of the scene * Describe possible dangers at the scene (assess road safety-general)
Describe the following in a complete manner
* Road surface type * Road surface condition (bumps, age, etc.) * Road texture * Gradients/slopes * Width of road * Width of road shoulder - (Gravel or tar) * Curves/turns before or after scene * Physical factors that might influence vehicle dynamics * Any irregularities * Point of impact * Marks made by vehicles on the scene * Describe how marks were made * Position of marks on the scene
VEHICLES
* Damage to vehicles * Position of damage * Degree of damage * Type of damage (impact, graze, mechanical failure) * Deductions about mechanism that caused damage * Final rest positions of vehicles described
DISCUSSION
* Discuss vehicle movements * Discuss other possible scenarios * Discuss probabilities * Discuss the match between the probabilities and the physical evidence * (Use a holistic approach and use precise wording)
CONCLUSION
* Give a summary of most probable scenario * State other possibilities only if reasonably possible * If there is only one possibility, state it clearly * Summarize taking road conditions and road circumstances into account
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