Speed bumps are traffic facilities that are installed on the highway to slow down the passing vehicles. The shape is generally strip or dotted. The material is mainly rubber or metal.
Speed bumps make the road slightly arched to achieve the purpose of vehicle deceleration, generally set in highway crossings, industrial and mining enterprises, schools, residential areas, such as the entrance to the need for slow vehicle deceleration section and easy to cause traffic accidents section, is used to reduce the speed of motor vehicles, non-motor vehicles to exercise a new special traffic safety Settings. Speed bumps greatly reduce the traffic accidents at the main crossings, is a new special traffic safety facilities. In driving, the car is safe and has the purpose of buffering and slowing down to improve the safety of traffic crossings.