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Use ideas about forces and energy to explain how these advance help road safety?
Wiki User
∙ 13y ago
they use crash barriers, barrels of sand or water, and road surface technology. the crash barriers 'flex' so when a car crashes into them, less damage is done. barrels of sand or water save a car crashing into a sheet of concrete or metal sheets, also less damage is done to car an less chance of serious injuries. with road surface technology such as, red tarmac- this is used to caue more friction between the tyre and the road. this causes the car to go at a slower pace, these are mainly used at pedestrian crossing, school crossings, traffic lights and turning a corner.
Wiki User
∙ 13y ago
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