Measure to Control Noise

As the impact of noise pollution is widespread, it is important for everyone in cooperation to mitigate. Noise pollution can be controlled by a number of measures. The first approach has been  reduce noise at source by design and fabrication of silencing devices and their use in aircraft engines, truck, cars, motorcycles, industrial machines and home appliances. Aircraft noise can be reduced to some extent by design of quieter jet engines. This strategy has brought limited but noticeable reduction of urban sound levels. Similarly, there are a variety of strategies for mitigating roadway noise by use of noise barriers, imitation of vehicle speeds, alteration of roadway surface texture, limitation of heavy duty vehicles, use of traffic controls that smooth vehicle flow to reduce braking and acceleration as well as tire design. Furthermore, exposure of workers to industrial noise can be provided through wearing devices such as earplugs and earmuffs; changes include redesign of industrial equipment, shock mounting assemblies and physical barriers in the work place. Another measure is control of indoor noise, whereas outdoor noises levels have been high. Therefore, the following methods can be applied for reducing their effect by locate in the building as far as possible from noise source, and trees and shrubs maybe planted in front of building to provide some absorption for the sound. Also, it is important to educate people through radio, television, newsreels in cinema halls about noise pollution. In the family, elders can teach children to keep the radio volume low, lowing voice talking not to horn unnecessarily on the roads, avoiding quarreling each other and so on especially there should be complete ban of loudspeakers from 8 pm to 7 am.