This standard specifies functional requirements for urban rail signalling and control systems " which operate on line of sight or using automatic block signalling with intermittent train control, " not covered by existing UGTMS standard EN 62290, " not forming a part of an urban traffic control system but possibly interfaced with such systems. The standard is restricted to functional requirements which allow users to define more specific requirements based on the given framework of the system requirements at top level. This standard is not applicable to command and control systems for urban rail using continuous data transmission and continuous supervision of train movements by train protection profile (already covered by EN 62290).