The bullet vehicle was driven by a volunteer along a flat concrete
surface into an aligned impact with the target vehicle. This method
was employed because of its similarity with real-world collisions.
Allowing the bullet to be driven into the target, rather than freewheeled,
gave better control over alignment and speed of impact.
Impact speeds were judged by the driver of the bullet vehicle using
GPS. The movement of the driver of the bullet vehicle was measured
using accelerometers and video footage for further research.
The target vehicle was in neutral with the handbrake disengaged.
The positional lamps were illuminated as part of a separate
university test running in conjunction with our own investigations.
A dual axis accelerometer and data logger (Vericom
VC3000DAQ) was affixed to the approximate lower centre of
the windscreen of both vehicles.