道路交通騒音のうるささと音質の関係

概要

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This paper describes a laboratory study of annoyance caused by road traffic noise. To measure the annoyance caused by road traffic noise, two kinds of subjective evaluation test were carried out; the one using 30 road traffic noise recorded on a road side with projection of video film of the scenery around the road side with and without the visual existence of traffic flow, the other using 48 road traffic noise recorded simultaneously at the location where direct sound propagation from the main traffic was confirmed and at the location behind the building without direct sound propagation. Among the frequency spectra of test noise in the second test, the differences on the SPL of high frequency component were significant. As a result, we found that: (1)from the first test the visible influence of the traffic flow to annoyance was not significant, and (2) from the second test, annoyance was different due to the differences on the high frequency noise while L_Aeq of road traffic noise were the same, (3)fluctuation strength had the highest correlation with annoyance, (4)besides L_Aeq, roughness and sharpness significantly contributed to annoyance simultaneously.
一般社団法人日本機械学会の論文
1999-08-25