people killed in crashes where speeding was a factor in 2016
serious injuries in 2016 when speeding was a factor
Crashing at speed
It’s simple – the faster you travel, the less time you have to react to emergencies or to stop. And if you do crash, the faster you are travelling, even if within the speed limit, the greater the risk of injury to you and your passengers.
The risk of being involved in a crash resulting in injury in a 60 km/h speed zone doubles with every 5 km/h increase in driving speed above the limit. This means travelling at 65 km/h in a 60 km/h speed zone doubles the chance of having a crash resulting in injury. Travelling at 70 km/h increases the chance of crashing by 4 times and travelling at 80 km/h increases this chance by 32 times.
This is due to kinetic energy, which a person or object has while it is moving. This energy is gained during acceleration and lost during deceleration. In a collision, the energy is transferred to the other person or object, usually as sound, heat and deformation of objects, including the human occupants.
Travel speed determines the amount of energy transferred in a crash. The human body can only absorb so much impact before death or serious injury result.