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Road Safety
Speeding Increases the Severity of Collisions
Speeding considerably increases the severity of injuries sustained in an accident. The risk of being seriously injured or killed in a crash doubles between 50 and 70 km/h and quadruples between 50 and 100 km/h.
During a collision, a vehicle decelerates suddenly and passengers are thrown towards the point of impact. Injury occurs as a result of the energy that is released at the moment of impact.
Kinetic energy is equal to 1/2 times the mass of a vehicle multiplied by its speed squared (KE = 1/2 MV2). As this equation illustrates, the severity of an impact, or the energy released, depends significantly on a vehicle's weight, but more so on the vehicle's speed.
- An impact at 50 km/h is equal to a fall from the top of a 4-storey building.
- At 75 km/h, it is equal to a fall from an 8-storey building.
- At 100 km/h, it is equivalent to a 14-storey drop.
Last Modification: 2010-01-25
