Standards Development

Scope

This part of IEC 62290 specifies the interfaces for urban guided transport management and command/control systems (UGTMS) as defined in IEC 62290‑1, IEC 62290‑2 and accordingly with IEC 622290-3 which is giving the allocation of functions and requirements defined in IEC 62290‑2 to the different UGTMS subsystems, for use in urban guided passenger transport lines and networks.

This document is applicable for new lines or resignalling of existing lines.

This document is applicable to applications using:

* continuous data transmission,

* continuous supervision of train movements by train protection profile, and

* localisation of trains by onboard UGTMS equipment (reporting trains), and optionally by external wayside (and optionally onboard) device.

This part of IEC 62290 deals with the definition of the logical interfaces or FIS (functional interface specification) between UGTMS and some external equipment, as well as the data exchanged by them.

A priority of consideration will be given to external interfaces with the UGTMS Onboard equipment (OBS).

This document specifies such external interfaces only for GOA2 and GOA4 related requirements of UGTMS and their allocation to UGTMS architecture.

Purpose

As described in the introduction of IEC 62290 series, a Part 4 about interfaces has been foreseen as a possible development. Such a description of interfaces is seen as valuable for market needs, in order to get a framework for easing the integration of UGTMS systems in their environment.

Experience of projects shows that the clarification of the interfaces between UGTMS and train providers represents a big work: therefore, covering interfaces of UGTMS with the train and onboard equipment is seen as desirable by the market.

Considering the options defined in the series, in particular in relation with the allocation of system requirements of Part 2 into Part 3, the objective of this Part 4 is to focus on external interfaces of UGTMS, at FIS level, in order to facilitate consensus. The goal is to create a single description of each covered interface (i.e. not to provide descriptions depending on options of Part 3).

Also, priority is to be given to the most common GOAs of the market of train control systems, GOA2 and GOA4. For subsequent editions of this Part 4, the scope may be extended to cover other interfaces, GOAs or options of allocation, and to further detail some of these interfaces (FFFIS).