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Building demolition is also a construction activity thatl causes environmental impacts, in particular noise and dust pollution. In addition to traditional demolition methods, some foreign countries have adopted alternative demolition methods to reduce the environmental impacts.

The data show that the sound pressure level of noise generated using quieter equipment and methods is significantly lower than that of using traditional equipment and methods

Noise Abatement of Railhead & Rail Groove Grinding Machines

Noise Abatement of Railhead & Rail Groove Grinding Machines

Noise enclosure Installation grind wheel covered by the noise enclosure.  CCTV installed to view the grind wheel operation. 

 

 

Courtesy of Hong Kong Tramways Ltd.

Sound pressure level in dB(A) at 25m from equipment 58-60dB(A)