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Civil Complaints Status against Noise and Vibration
Noise discharging facilities have properties of fixed noise source. As noise source does not disappear after installation, the facilities can do harm or damage to the neighboring region. According to ｢Noise and Vibration Control Act｣ revised in March, 1997, permit system toward discharging facilities in the areas around schools, general hospitals, public libraries and nurseries requiring tranquility continued to exist and the system in other areas turned into reporting system. In 2011, the number of noise discharging facility permits or reportings was 35,215, which means that the number increased by 1.9% compared to 34,544 in 2010. Among the facilities, 985 facilities were required to get permit because they were located in the tranquil areas.
Traffic noise with a very high noise level, which is discharged mostly from automobiles and trains, does harm or damages over wide range of areas. In particular, automobiles, which are steadily increasing with expanding road networks, are considered as a main noise source in large cities. From aspects of traffic noise in urban areas, residential areas as well as commercial and industrial areas are under the influence which is expanding into rural areas as road networks including expressways are being expanded.
Various noises in daily life arise from loud speakers, construction works, small sized manufacturers, bars and night club noises, etc. Noise sources in daily life is rapidly increasing with population growth, urbanization and industrialization in recent years. However, as the standard of living has improved, the demand for tranquil living environment is also increasing. The number of civil complaints related to noise in daily life was 56,244 in 2011, which indicates an increase by 4.7% compared to 53,718 in 2010. Noise complaints account for 33.4% of all civil complaints, therefore, effective measures against noise pollution is needed.
With a rapid increase in newly launched air routes and the number of flights, health hazard caused by aircraft noise is becoming a critical environmental issue. Since 1989, the Ministry of Environment launched an aircraft noise monitoring system to secure the baseline data for noise reduction plan in aviation sector; noise level is measured for 24 hours, on regular basis.
Vibration, strong oscillations caused by the use of machines or tools, generates secondary noise in the building since it spreads throughout the building structure propagating through the ground. In 2011, the number of vibration discharging facility permits or reportings was 6,645, showing an increase by 11.5% than in 2010. Among these facilities, the number of facilities subject to permit was 140.
Last modified : 2013-10-07 14:59
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