Study On Preventing Measure Of Traffic Noise And Assessment System

With the development of road construction, the traffic noise pollution becomes very important problem .Sound barrier, an effective and comparatively inexpensive measure of controlling noise, will be developed to some degree .It will do much benefit to the living quality of the residents along the road if we can take good advantage of its technical property.According to form structure and stuff, the thesis induces road sound barrier systematically, describes their sound properties and mechanical properties, draws all kinds of structural graphic of sound barrier. The weaken noise aim value, the building position, height and length of sound barrier have been analysed and. calculated systematically.The thesis has studied sound insulation material and sound-absorbing materials's noise reduction through laboratory measurement. The structural acoustic analysis instrument which is made by BK Co. from Denmark has been used in this test. The analysis of different materials' noise reduction of sound barrier have been done on the basis of the data. It can be referred to by the sound barrier designers .Material selection and structural form selection in sound barrier design comprehensive evaluation with fuzzy theory. Selecting twelve factor of effect on sound barrier design in assessment model, and settlement of Index System on sound barrier assessment. Take Huangluanzuang School sound barrier design as an exemple, briefly introduced Implementation instruction on sound barrier design , and evaluated with fuzzy theory . The evaluation result indicate: achieve the better Level in economic index physical index social profit in Huangluanzuang School sound barrier design. The reasonable match of structure and sound absorption material in the design. Get along with actual measurement of noise reduction effect.