TY - JOUR AU - Hodgson, M. PY - 1991/01/01 Y2 - 2024/03/28 TI - Review and critique of existing simplified models for predicting factory noise levels JF - Canadian Acoustics JA - Canadian Acoustics VL - 19 IS - 1 SE - Technical Articles DO - UR - https://jcaa.caa-aca.ca/index.php/jcaa/article/view/628 SP - 15-23 AB - This article is based on a report to the CSA Industrial Noise sub-committee in response to its request to study the need for and feasibility of revising the existing CSA standard procedure for predicting noise levels in factories. It reviews and attempts a preliminary evaluation of existing models for predicting noise levels in factories. The important factory-acoustic parameters and factory-noise characteristics are discussed. Six models are described, along with the extent to which they have been validated. The models are then evaluated with respect to what extent they take the various parameters into account, and predict the various characteristics. It is concluded that the models have significant merits and short-comings, and that they have not been adequately validated in comparison with reliable experimental results. It is further suggested that there may be scope for a new, more comprehensive simplified model ER -