Those conditions may include vehicle dimensions, weights, crush stiffness, speeds, positions, orientations and driver inputs, to name a few. With a computer simulation, the program software includes a validated physics module that calculates and predicts the movements and/or post-collision dynamics of the vehicles depending on the set of initial conditions input by the expert. With an animation, the accident scene, object models (including automobiles, trucks, buses, motorcycles, bicycles or pedestrians) and object movements are input by the animator based on results from an expert accident reconstruction and other reliable information.Īccident simulation is similar to animation as far as the visual end product but the technique is slightly different. The results can be very powerful re-enactments of the subject collision or incident from various perspectives. Or simple static still frame slides showing plan views from overhead and from various oblique bird's eye views can be shown. With this capability, the dynamic viewpoint of drivers, passengers, pedestrians, or eyewitnesses can be demonstrated. "Cameras" can be placed at any location within or above the animation accident scene, including attached to dynamic moving objects (such as within the driver's compartment inside a car).
The results can be viewed in real time or slow motion. These trajectories are incorporated into a three dimensional accident scene diagram or a Google Earth satellite image or a combination of both. Traffic accident animation provides a dynamic 3-D color visual portrayal of the time - speed - position histories of vehicles and/or pedestrians. Computer animations and simulations are effective tools in performing and presenting accident reconstruction analyses.
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