These can be attributed to a variety of causes. Possible causes of vibration emission (coming from the periphery) are often amplified by low resonant frequencies of floor slabs: Factory traffic, production machines, … These must either be tackled at the source (source isolation) or machines sensitive to vibrations must be protected from disruptive floor vibrations (receiver isolation). You can find definitions of the technical terms in the Bilz Vibration Technology Glossary.