航空機騒音の住環境への影響と評価

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The general trend of the relation between WECPNL and community reaction are not clarified. From this view point, we investigated the influence of aircraft noise on life environment by means of questionnaire for inhabitants around N, H, K, bases and T international airport, which showed different regional features respectively, and obtained about 1200 valid votes indivisually. According to the consequence of correspondence between WECPNL and positive response around four airports, it has been shown that items, as to "Annoyance of Aircraft Noise", "Disturbance of Daily Life", and "Hearing Disturbance", had similar trend of regression lines notwithstanding regional differences. So we considered basic influence of aircraft noise could have been comprehended from these items, and examined the relation between community reaction and WECPNL. As the result, following points were clarified. The level of neutral point in Likert scale, included many other factors of environmental noise, showed about 70 WECPNL around each airport and each item. Corresponding to this level, the percentage of positive response, which was considered including few other factors, showed about 50% as for "Annoyance of Aircraft Noise", and about 30% as for "Daily Life and Hearing Disturbance". This means the influence of aircraft noise for inhabitants have been conscious as to "the state of interruption" and the border level between positive and negative response in consciousness is about 70 WECPNL. By the way, around air-base in which daily flight numbers fluctuate very widely, the similar evaluated level of WECPNL to civil airport can be obtained by using N_<10> intended for flight days in a year instead of using averaged daily flight numbers of a year.
社団法人日本建築学会の論文
1980-01-30

航空機騒音の住環境への影響と評価

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