Noise control plan for a new airplane manufacturing facility

The work done by a noise technology staff in designing a noise control treatment for a new factory that had already been designed and had an established floor plan is described. The staff also had the responsibility of estimating noise levels in the new factory before it was completed. The noise-estimating procedures were based on acquiring noise measurements in a similar manufacturing facility with comparable enclosed area dimensions, production activities, and room characteristics. Noise was measured along the periphery of each area by recording the dBA level for a period of one minute. These noise levels were then transferred onto the new factory floor layout, where they were adjusted to account for work cycle, density of work parts, and number of production workers per unit area.