• Title, Summary, Keyword: 소음 지도

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Excess Noise Map for Environmental Standard and Assessment of Noise with Using GIS Data (GIS 자료를 이용한 초과소음지도 작성과 소음 평가)

  • Ko, Joon-Hee;Lee, Byung-Chan;Lim, Jae-Serk;Park, Su-Jin;Chang, Seo-Il
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.19 no.10
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    • pp.1075-1082
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    • 2009
  • Using GIS data of C-si as basic data when making noise map of road traffic, we estimated exactly the noise excess areas and consequently suggested the population and the area exposed to road traffic noise accurately. We made 3D noise map to assess regional distribution of noise quantitatively. The noise map consists of noise prediction model based on data base such as traffic volume and speed changes for estimating quantitatively the noise and 3D urban space model which includes locations of noise sources, 3D buildings, topography and roads. We made noise standard map according to land use conditions and compared this map to road traffic noise map, and consequently made excess noise map. Using excess noise map, we assessed areas which exceed environmental noise level standards and noise guidelines quantitatively and effectively through GIS spatial analysis, and consequently more accurate noise exposed area and noise exposed population could be estimated. To show buildings' outer walls noise exposure, we analyzed 3D urban noise distributions using 3D-analysis of GIS.

A Comparison of Estimation Method for Population Exposed to Noise Using Noise Map (소음지도를 이용한 소음노출인구 산정방법별 비교)

  • Choi, Sung Kyu;Lee, Byung Chan
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.24 no.10
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    • pp.802-808
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    • 2014
  • The purpose of this study is to suggest efficient methods for estimating population exposed to noises by analyzing differences of population exposed to noises estimated by each method through comparing exposed population estimated by utilizing existing methods and those estimated by using census output areas reflecting the actual population information of each address. For population exposed to noises, the error of exposed population estimated by using the per capita living space turned out to be the biggest, and other estimation methods had no significant difference. For population exposed to excess noises, as a result of analyzing population estimated by each method based on census output areas, the error of the method using a grid noise map turned out to be the biggest. For the method to estimate population exposed to noises by using a noise map, the estimation methods using census output areas and total ground area are considered to be more rational than the grid noise map estimation method or the method to estimate the living space per capita.

Drawing up a Noise Map under Launch Environment through Analyzing Jet Noise of Guided Weapon (유도무기의 제트소음 분석을 통한 발사환경에서의 소음지도 작성)

  • Kim, Sang-Min;Park, Woong;Ha, Jae-Hyoun
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.163-168
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    • 2011
  • Noise map is drawn up under launch environment through analyzing jet noise of guided weapon in this research. This has an important significance in terms of having an opportunity to look at influence of noise which is caused by guided weapon in the surrounding environment. In this paper, the magnitude of jet noise that was measured by using microphone and the result of numerical analysis that was gained by using ENPro which is environment noise prediction program are shown. At this point estimation of noise source was based on ISO 9613. Finally noise map derived from results mentioned above will become useful material when setting safety guide for protecting hearing loss of operator of weapon system in the future.

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Effects of Grid Size on Noise Prediction Results of Road Traffic Noise Map (소음지도 격자크기가 도로교통 소음도 예측결과에 미치는 영향)

  • Kim, Ji-Yoon;Park, In-Sun;Park, Chan-Youn;Park, Sang-Kyu
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.20 no.2
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    • pp.199-204
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    • 2010
  • Noise map is very efficient tool to evaluate the road traffic noise. However, calculation time and accuracy of noise map heavily depend on the grid size of noise map. In this study, effects of grid size on the prediction results of road traffic noise map have been investigated in detail for urban and rural areas, respectively, and efficient grid size for the noise map has been proposed.

Effects of Vehicle Classification Methods on Noise Prediction Results of Road Traffic Noise Map (소음지도 제작시 차량 분류방법이 소음도 예측 결과에 미치는 영향 연구)

  • Kim, Ji-Yoon;Park, In-Sun;Jung, Woo-Hong;Kang, Dae-Joon;Park, Sang-Kyu
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.22 no.2
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    • pp.193-197
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    • 2012
  • Road traffic noise map is effective method to save cost and time for environmental noise assessment. Generally, noise is calculated by using theoretical equation of noise prediction, and the calculated result can be influenced by various input factors. Especially, domestic vehicle classification method for traffic flow and heavy vehicle percentage is different from that of foreign countries. Thus, this can cause effect on the noise prediction results. In this study, noise prediction results by using domestic vehicle classification method are compared with those by foreign methods.

Effects of Vehicle Classification Methods on Noise Prediction Results of Road Traffic Noise Map (소음지도 제작 시 차량 분류방법이 소음도 예측 결과에 미치는 영향 연구)

  • Kim, Ji-Yoon;Park, In-Sun;Jung, Woo-Hong;Park, Sang-Kyu
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.872-876
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    • 2007
  • Road traffic noise map is effective method to save cost and time for environmental noise assessment. Generally, noise is calculated by using theoretical equation of noise prediction, and the calculated result can be influenced by various input factors. Especially, domestic vehicle classification method for traffic flow and heavy vehicle percentage is different from that of foreign countries. Thus, this can cause effect on the noise prediction results. In this study, noise prediction results by using domestic vehicle classification method are compared with those by foreign methods.

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A Study on the Prediction Model of Railway Noise Using Noise Map (소음지도를 이용한 철도소음 예측식의 연구)

  • Park, Chan-Youn;Park, In-Sun;Oh, Jong-Hwa;Lee, Jae-Won;Park, Sang-Kyu
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.882-886
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    • 2007
  • People living in the large cities are exposed to high level noise due to road-traffic, railway-traffic and aircraft. Nowadays, some researches are ongoing to reduce the noise by using noise map. However it has to be decided which prediction model is the most suitable in Korea. In this study, it has been focused on railway noise prediction models which are employed in a commercial software(Sound Plan) and developed by Korea Railroad Research Institute, and comparative study of the prediction models has been made.

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Effects of Grid Size on Noise Prediction Results of Road Traffic Noise Map (소음지도 격자크기가 도로교통 소음도 예측 결과에 미치는 영향)

  • Kim, Ji-Yoon;Park, In-Sun;Park, Chan-Youn;Park, Sang-Kyu;Ryu, Bong-Jo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.867-871
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    • 2007
  • Noise map is very efficient tool to evaluate the road traffic noise. However, calculation time and accuracy of noise map heavily depend on the grid size of noise map. In this study, effects of grid size on the prediction results of road traffic noise map have been investigated in detail for urban and rural areas, respectively, and efficient grid size for the noise map has been proposed.

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A Study on Cost-Benefit Analysis of Noise Control Facilities using Road Traffic Noise Map (도로교통 소음지도를 이용한 소음저감시설의 비용 / 효과 분석방법 연구)

  • Kim, Ji-Yoon;Park, Sang-Kyu
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.303-310
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    • 2008
  • In Korea, the current noise impact assessment has not yet considered the vertical noise propagation property by buildings and other obstacles. And noise control plan has been established without conducting the economic assessment for the noise control facilities. A noise map is used to calculate the noise level based on a theoretical formula or an empirical formula, and also predict the characteristics of vertical propagation by linking with a geometry data. And It is Possible to analyze cost-effect of noise control facilities by consider installation costs. In this study, we addressed the application of noise map for noise impact assessment and cost-effect analysis of noise control facilities.

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