Cars, the highway code and collisions
- Created by: Nadia
- Created on: 20-12-12 20:23
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- Cars, the highway code and collisions
- the total stopping distance of a vehicle = thinking distance + braking distance
- factors which affect these distances
- the total stopping distance of a vehicle = thinking distance + braking distance
- velocity of the car
- reaction time of the driver
- mass of the driver
- condition of the vehicle's brakes and tyres
- condition of the road surface
- weather conditions
- in the UK, the speed limit on a motorway for cars 70mph but when they have extra mass (e.g. caravan) it is 60mph
- in built-up/ heavily built up areas it is 20/30mph
- traffic cameras are connected to computers to calculate the velocity of passing vehicles to see if they are within the speed limit
- Safety features in cars reduce the numbers of injuries/ deaths when cars are involved in accidents.
- safety belts
- air bags
- crumple zones
- safety cages
- all these features act by increasing the time taken for the collision to take place
- -reducing the momentum of the car passengers and the force acting on them
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