The technology uses a g-force meter to recognize 'jerky' driving, including hard accelerating, sharp turns and hard braking. A profile can then be built up that tells fleet managers which of their cars are driven by 'aggressive' or 'safe' people.
GreenRoad is marketing the technology to parents that want to monitor their teenager's driving behaviour, as well as companies with large fleets and the military.
According to GreenRoad, their system has met with success in fleets and the figures show that the technology creates a 54% reduction in crashes and an 83% reduction in crash costs - but at a cost of the privacy of the motorist.