Typically, the driver said they were not the greater, the smaller the deceleration vehicle safety belt, that sense of security is smaller. Therefore, the deceleration zone settings can reduce driver driving security and comfort expectations road deceleration zone, prompting the driver to choose a lower desired speed. Under the guidance of the desired speed reducer with pictures, the driver will take the initiative to drive the vehicle at lower speeds approaching and driving through the deceleration zone. In accordance with a different shape and function deceleration can be divided into the following types. Humps humps that extend to the middle of the street or the entire width of the street a circular raised area, 6 to 10 cm high, set apart 100 --150 m deceleration zone specification, is one kind of common speed control measures. Section type humps have four kinds: sine curve, arc-shaped, parabolic and mansard. Advantages humps is: can effectively reduce the vehicle speed, and pedestrian and bicycle travel coordination and facilitate the implementation. The disadvantage is: When the vehicle passes prone to noise, after long-term use, easy to damage the plate off, and the construction process of the road will cause some damage to the installation, increased road maintenance costs. Deceleration with pictures, Xin bar fence (certification), speed humps provided by Xinxiang City Xin Metal Products Co., bar. Xinxiang City Xin bar Metal Products Co. (www.xlhlc.com) (www.xlhlc.com) Henan Xinxiang, Fence, bar, network leaders, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness policy, and satisfy customer needs. Xin field fence in leadership with the staff warmly welcome all inquiries negotiations to create Xin field fence better future.