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Prognosis for urban noise in the United States—The present to 1990

✍ Scribed by Rufin Makarewicz

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
318 KB
Volume
13
Category
Article
ISSN
0003-682X

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✦ Synopsis

A Jorecast of Ld, changes within the residential areas oJconstant population density is made in terms of external noise levels (L1L2) and'vehicle travels' (NiN2) for cars, trucks and buses. Anticipated increases ofN 1 and N 2 have been estimated by the use of trend line analysis (Figs. 3 and4). A few hypotheses ofL 1 and L 2 decrease have been considered. Increase of Ld, by more than 3dB may be expected until 1993.

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