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 with the manufacturers, 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 with price reduction, increased road maintenance costs during installation. In accordance with a different shape and function deceleration can be divided into the following types. Round and round the spike strips are bonded together deceleration deceleration zone, slow down with the top of the left circle the size of the slot spike, the spike fixed in a circular deceleration zone at the top of the slot. Increase their nighttime reflective brightness. Disk-like design can be an effective force decomposition, increase its compressive strength. Separate installation, easy intermediate cyclists speed humps supply plenty of space, a sense of a motor vehicle to reduce turbulence. When the driver when the deceleration zone, from the visual and auditory feel the deceleration zone, only to hear the wheel than ever brought pressure over a speed bump warning effect much better. Speed ??humps how much per meter, Xin bar fence (certified), Sanmenxia deceleration zone provided by the 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.