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A Study on the Improvement of Noise Reduction Measures in the Highway Noise Management Area in Seoul

Yoon Shin BaeㆍHan-Na Park

With the recent increase in cars, the expansion of roads and houses being built adjacent to the road, the number of traffic noise damages is increasing every year and civil complaints are also increasing. Road noise is perceived as the most serious noise problem by Seoulites, and the number of complaints for damages such as sleep disorders and psychological stress is increasing steadily.

Noise insulation facilities, which are facilities for the establishment of noise reduction measures, include noise insulation, sound barrier, sound barrier, rain fall, and sound tunnel. The purpose of rain forests and slats is to ease the visual and psychological pressures rather than the noise reduction effect. However, it is difficult to secure green space in Seoul due to the difficulties in securing a green space. Although noise reduction is good, acoustic tunnels are concentrated in urban areas, such as noise and dust, and collision and fire in the tunnels Noise insulation walls are installed at the side of the road to reduce noise through the principle of reflecting, absorbing, and damping noise generated by vehicles during operation. However, installing soundproof walls is causing problems such as degradation of city appearance and blocking of vision, and there is little noise reduction effect in skyscrapers. The low noise packaging method reduces the stop of large air gaps on the pavement surface of the road, but has not been actively utilized due to the wear of the tires or dust in the air since a certain period, resulting in poor surface air gap and decreased effect.

In order to prepare proper noise measures in the road noise public areas, the government should pre-empt the installation location of the soundproof facilities based on the Seoul Metropolitan Government's criteria and refer to the traffic factors such as noise and speed.

The study selected soundproof facilities by classifying surrounding conditions and traffic factors for 30 noise intensive management areas. The noise prediction 3-D program was used to simulate the reduction effects of each noise countermeasure. Although there are various and complex factors affecting road noise in urban areas, noise reduction measures to meet noise standards are converted into noise insulation facilities that are environmentally friendly and even safe for citizens. To this end, improvement of urban landscape and expansion of application of low-quiet packaging to reflect the surrounding environment are inevitable, and continuous research is needed for durability and quality improvement.