The Singapore construction noise standard

Abstract

With the construction boom presently being experienced in Singapore and further massive construction and demolition programs expected for the proposed new Mass Rapid Transit system, construction noise is now a major problem that has to be controlled with urgency. Studies for the development of a suitable Singapore Code of Practice for control of noise from construction and demolition sites began in 1978 with investigation of the standards of other countries available at that time. Local construction methods and equipment were surveyed and noise studies carried out at various sites. A survey was conducted among residents in different parts of the country, zoned according to differing local conditions and sensitivities. Laboratory studies were also carried out to determine subjective response of the local population to the noises expected during various stages of the construction works. From these, the Leq equivalent energy level unit was chosen as an adequate noise descriptor but the Leq (5 min) was adopted rather than the more usual daily or 12-h Leq for prediction, measurement as well as control purposes. Considerable thought was given to establishing acceptable noise levels which continue to be economically realistic for the survival of the local construction industry. Some of the aspects involved in the implementation of noise control procedures as well as the extent to which public approval could be more effective than resorting to the usual legal actions are reviewed.