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, 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 deceleration zone, to facilitate 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 with pictures slowdown, increased road maintenance costs during installation. Traffic calming can be divided into motor vehicle speed limit, restrict vehicle traffic and parking restrictions roadside method deceleration zone three categories specifications, including motor vehicle speed limit is divided into vertical, horizontal and lane reduction formula controls . Deceleration zone belongs to one of the vertical speed control measures road deceleration zone, by changing the way certain height or material, according to the heart, the physiology of the mandatory vehicle deceleration, in order to achieve security. Speed ??humps production | power safety equipment (certified) | Henan deceleration zone provided by Xinxiang County Economic Development Zone power safety equipment operators. Xinxiang County Economic Development Zone power safety equipment operators (www.xxlmdgs.com) is an industry leader in Shenzhen, Guangdong, crash facility, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Safety Equipment leadership in power with the staff warmly welcome all inquiries negotiations to create power safety equipment a better future.