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Sound is essentially vibration in air, so the topic is familiar to us. From a noise control perspective, it's critical to understand how it is generated and propagated.

Vibration in structures, the ground and from machinery may effect humans and it's usually with that in mind that it causes concern.

Ground borne vibration from construction, transportation etc may cause cosmetic or structural damage to buildings or causes disturbance to occupants of the buildings. It may also cause re-radiated noise in buildings.

Occupational vibration may cause damage or task impairment to people at work, typically from hand-arm vibration (power tools etc) or whole-body (vehicles, platforms etc) vibration.

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