This part of ISO 2017 establishes requirements to ensure appropriate exchange of information regarding the application of isolation for vibrations and shocks generated by railway systems. This part of ISO 2017 is applicable to the construction of new railway systems. It may also be applied to previously installed systems when the user wishes to solve a new vibration problem arising from railroad degradation, when new environmental land use planning requirements are put in place, or when new vibration-sensitive land development occurs in proximity to existing railway systems. It applies to vibration problems encountered in a railway environment but does not address vibration problems within railway cars (carriages) themselves. This part of ISO 2017 intends to give appropriate responses to questions highlighted by the producer and users (why, what, when and how to isolate mechanical systems).