Crash Analysis
Crash Analysis assists crash investigators in road accident investigations by using scientifically proven methods and techniques to analyse the evidence often left at a crash scene, or on the motor vehicles involved.
A crash investigation often involves obtaining driver and witness accounts; however it is common knowledge that people have different perceptions while observing incidents, which may cause statements to be distorted and inaccurate. It is even more difficult where there are no independent witnesses.
Positioning of vehicles at the point of impact
Police worldwide use crash analysis in serious traffic crashes where the evidence located at the scene or on the vehicles, is the only method available to reconstruct a crash.
Crash analysis often involves Forensic Mapping to assist in completing some of the calculations required to prove such things as speed, or to accurately place vehicles or objects in a scene, and to assist with visually displaying the crash.
New Zealand Crash Investigators offer its customers the same high level of investigation and expertise that is normally reserved for only serious vehicle accidents.
What can a Crash Analysis prove:
- HMV roll over threshold speeds
- SRT compliance
- Roadway faults
- Environmental issues
- Driver fault
- Speed of vehicle from slide to stop
- Speed of vehicle from yaw
- Braking efficiency
- Speed of vehicle from vault
- Speed of vehicle from pedestrian throw
- Speeds of vehicle from glass/debris throw
- Stopping distances
- Speed of vehicle from momentum
- Friction values of a roadway (see image)
- Mechanical faults
- Critical curve speeds - maximum speed a vehicle can negotiate a corner.
- Collision avoidance from time and distance
- Bulb incandescence - headlights or brake lights on/off
- Sight distance
- Vehicle positioning
- Vehicle direction of travel
- Identify vehicles involved through crash damage
