There are three major elements that are causal factors in traffic accidents:

1. The Human Element

Driver error
Sight distance considerations
Perception-reaction time

2. The Roadway Element

Highway design
Maintenance
Signs, striping, and markings

3. The Vehicle Element

Condition of brakes (especially tractor-trailers)
Condition of tires
Lights, signals

The Professional Traffic Operations Engineers at Accident Diagnostics, Inc. use state-of-the-art technologies to determine accident causation. We do not compromise science and give in to speculation. This is evident from the fact that:

• We use accelerometers to determine coefficent of friction
• We simulate the collision using full-scale three-dimensional modeling of vehicles and roadway in a very advanced computer environment designed to model even complicated auto crashes
• We have full-scale 3D models of most passenger cars, school buses, trucks, and tractor-trailers in our extensive database
• the methodologies used by our engineers are recognized by peers as the ideal method to model and reconstruct automobile crashes