The process of development of railway vehicle subsistems

The article presents the development process of railway vehicle subsystems in the context of meeting the safety requirements of the specific standards. Railway subsystems must be qualified to meet the required safety conditions so that operation is safe for the persons and does not adversely affect the environment or other goods. The multitude of applicable regulations requires the existence of a process to guide designers. By applying this it is possible to obtain subsystems that meet the conditions of reliability, availability, maintainability and safety and in this way can be qualified as usable in the railway field.