Abstract
A large number of noise impact studies for projects of different types are developed annually as part of the System of Environmental Impact Assessment in Chile. One of the most important variables to predict the emission of noise is the sound power of noise sources involved. In this study, we compare sound power levels (Lw) calculated according to measurements of sound pressure levels by the Acoustic Control Company in different construction projects and the levels calculated from the British Standard BS 5228‐1:2009 “Code of Practice for Noise and Vibration Control on Construction and Open Sites Noise”. The study considers the most frequently involved machines in construction tasks, such as loader trucks, cement mixer trucks, wheeled loaders, rollers, angle grinders, cranes, circular saws, and backhoes.
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