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Document ID (ISN)68153
CIS number 96-2277
ISSN - Serial title 0386-8761 - Journal of the INCE of Japan
Year 1995
Convention or series no.
Author(s) Kitagawara T., Nishigaya T., Yamada M.
Title Trends in noise control for construction machinery
Original title Kensetsu kikai no sōon taisaku gijutsu dōkō [in Japanese]
Bibliographic information Aug. 1995, Vol.19, No.4, p.8-12. Illus. 3 ref.
Abstract In Japan, the average level of noise produced by construction machines or operations has decreased by more than 20dB in the last 25 years. Diesel hammer pile drivers have been replaced by augers, resulting in a 30dB decrease. The use of hydraulic crushers instead of impact breakers in demolition work has resulted in a 20dB decrease. Design improvements in excavators, compressors and diesel-powered generators gave a 20dB reduction. These changes reflected the passage of noise control laws and the promotion of a "Designation system of low-noise machinery" by the Ministry of Construction. This rating system identifies construction machinery that meets noise standards for given applications. The Ministry has also encouraged the use of low-noise machinery in public works. Further improvements will require more than the reduction of engine noise and enclosure of noisy parts that were practiced in the past; low-noise designs will be found for some kinds of construction equipment that pose special problems.
Descriptors (primary) Japan; construction equipment; role of government; construction industry; noise control
Descriptors (secondary) round-up; history
Document type D - Periodical articles
Country / State or ProvinceJapan
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Construction industry and civil engineering
Noise