Martin, D.J. Primary Author mixed material bibliography TRRL 1977 id Indonesia

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23 p.; fig.; tab. Noise predictions and measurements have been made during the earthworks phase of road construction. Measurements over periods of six hours or more showed that levels at the site boundary ranged from 70 to 83 dB(A) and at 30 m from the boundary ranged from 62 to 75 dB(A). The main eatrhworks operations occupied between 10 and 20 days in any one location. It is shown that the method of prediction developed at TRRL is accurate to within an rms error of 2 dB(A) provided that certain details on the machinery to be used, the intensity of operation and the local features of the site which affect noise propagation are known. It is suggested that, in practice, where such details are not known accurately before the start of operations, the prediction method can be used to identify noise sensitive areas where noise controls may be needed and to determine appropriate noise monitoring strategies to be carried out during the construction work. NOISE 625.7(047.31) Perpustakaan Direktorat Bina Teknik Jalan dan Jembatan Direktorat Jenderal Bina Marga - Kementerian Pekerjaan Umum (NPP: 3273244A00000001) 625.7(047.31) Mar r 0000001479 My Library 625.7(047.31) Mar r 1461 machine generated