Driving is unpredictable and if something unexpected happens on the road ahead – such as a child stepping out from between parked cars – it is a driver’s speed that will determine whether they can stop in time and, if they can’t stop, how hard they will hit.
Reducing and managing traffic speeds is crucial to road safety.
Breaking the speed limit or travelling too fast for conditions is recorded (by police at crash scenes) as a contributory factor in almost one in four (23%) fatal crashes in the UK.1 This is arguably a gross underestimate, because whether or not a vehicle is judged to have been speeding or going too fast for conditions, the fact it was involved in a collision means it was going too fast to have stopped in time. In this way, speed is always a contributory factor, albeit often in combination with other causes: no one was ever killed by a stationary vehicle
Brake – the road safety charity