2019 Fiscal Year Final Research Report
Establishment of a spatiotemporal variation model of ground acoustic properties for wide-area prediction of environmental noise propagation
Project/Area Number |
16H04462
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Architectural environment/Equipment
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Research Institution | Niigata University |
Principal Investigator |
Oshima Takuya 新潟大学, 自然科学系, 准教授 (40332647)
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Co-Investigator(Kenkyū-buntansha) |
平栗 靖浩 近畿大学, 建築学部, 准教授 (90457416)
奥園 健 神戸大学, 工学研究科, 助教 (40727707)
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Project Period (FY) |
2016-04-01 – 2020-03-31
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Keywords | 建築環境・設備 / 都市環境音響 / 騒音伝搬予測 / 地表面音響特性 / リモートセンシング / 気象観測 / 土壌水分 / ノイズマップ |
Outline of Final Research Achievements |
Magnitude of spatiotemporal variation of ground acoustic properties that affects environmental noise propagation has not been well known. In this project, a temporal variation model was derived from in-situ observations of meteorological elements, soil moisture content and ground acoustic properties. Thereafter, a spatiotemporal variation model was established by integrating the temporal variation model and the land cover classification estimated using hyperspectral imaging data. From sound propagation calculations using the established model, it was demonstrated that spatiotemporal variation of ground acoustic properties needed to be taken into account.
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Free Research Field |
環境音響学
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Academic Significance and Societal Importance of the Research Achievements |
本研究の展開として,気象予報と本研究成果のモデルから動的に算出した「騒音予報マップ」の作成・活用により,騒音源たる交通流および航空機飛行経路の制御,個人の暴露抑制行動誘発など,社会的な騒音暴露抑制手段に道が開かれる。また,地表面音響特性分布マップを活用し,都市全体における吸音力配置の現状把握および改善提案を行うような,新たな視点に基づく都市計画的な騒音政策が考えられる。これらにより,最終的には騒音による国民の健康リスク低減が見込まれる。
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