This document specifies the functional requirements of UGTMS (Urban Guided Transport Management and Command/Control Systems) for use in urban guided passenger transport lines and networks. This standard is applicable for new lines or for upgrading existing signalling and command control systems. This document is applicable to applications using: " continuous data transmission " continuous supervision of train movements by train protection profile " localisation of trains by onboard UGTMS equipment (reporting trains), and optionally by external wayside (and optionally onboard) device. In this standard, the functional requirements set the framework to which detailed functions should be added to define any generic or specific application. Because of that, although this document is applicable as a basis to define SRS, FIS and FFFIS, elements may be added for a generic or specific application. Note: the functional breakdown in this document is consistent with Basic functions in Table 1 of Part 1. These Basic functions have been refined into a more complete and detailed tree, and the Mandatory/Optional attributes of their subfunctions may be different with those given in Table 1. The functional breakdown which follows this clause is the reference one for IEC 62290 series.