# The Railways (Interoperability) (High-Speed) Regulations 2002, Paragraph 2.4.2: Requirements specific to each subsystem


Reliability and availability
The design of the vital equipment and the running, traction and braking equipment and also the control and command system must, in a specific degraded situation, be such as to enable the train to continue without adverse consequences for the equipment remaining in service.

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Source: https://www.legislation.gov.uk/uksi/2002/1166/schedule/3/paragraph/2.4.2 (the official version)
Page: https://openlegislation.uk/railways-interoperability-high-speed-regulations-2002/schedule-3/paragraph-2.4.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.