Abstract
This paper highlights the development of value function curves for noise impact assessment based on a literature review and consultation with numerous experts; applying theory to the evaluation of noise impact in the residential complexes of Jamadoba and Sijua coal mining Complexes of the Tata Iron and Steel Company Limited (TISCO), Dhanbad, Jharkhand (India). The ranking and relative weightings of five important effects of noise exposure were established. The relationships between these parameters and Noise Environment Quality (NEQ) value were evaluated through available research findings and accordingly value-function curves for each parameter were developed through Statistical Package for Social Sciences; then, Resultant NEQ [NEQ (R)] was evaluated for all the residential, commercial and other sensitive areas of the Jamadoba and Sijua complexes. This was followed by the validation through a systematic reaction survey of the exposed population on a five-point scale which led to the evaluation of the percentage population which was highly dissatisfied in each of the localities, as well as the noise impact indices of both the residential complexes.
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