IEC 62290-3:2025

Overview

IEC 62290-3:2025 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the system architecture and system requirements for Urban Guided Transport Management and Command/Control Systems (UGTMS). This standard is part of the IEC 62290 series focused on railway applications, specifically addressing urban guided passenger transport lines and networks. IEC 62290-3 complements parts 1 and 2 of the series by detailing the allocation of functions and requirements to UGTMS subsystems, ensuring clarity for system design and deployment.

The standard applies to new transport lines as well as upgrades to existing signaling and command/control systems. It supports various grades of automation (GOA), from non-automated to unattended operations. While IEC 62290-3 does not directly address security, it incorporates safety requirements that may impact system security considerations.

This edition (2025) is a technical revision of the previous 2019 release, reflecting updates from the latest revisions of IEC 62290-1 and IEC 62290-2, including changes in functional requirements and external system descriptions.

Key Topics

• UGTMS System Architecture
  Defines the overall structure and design principles for urban guided transport systems, including wayside, onboard, and communication subsystems to manage and control passenger transportation.

• Subsystem Functional Allocation
  Specifies mandatory and optional functions assigned to different UGTMS system constituents such as:

  • Wayside Subsystem (WS)
  • Onboard Subsystem (OBS)
  • Spot Transmission Subsystem (SPTS)
  • Data Communication Subsystem (DCS)
  • Operation Control Subsystem (OCS)

• Interface and External Equipment Integration
  Details the interfaces between UGTMS subsystems and external equipment, encompassing infrastructure, signaling, station systems, maintenance, power control, passenger information, voice communication, and surveillance.

• Rail Network Description
  Provides methodical definitions for line sections, track segments, and the rules governing their configuration and chaining, essential for system setup and interoperability.

• Functional and Non-Functional Requirements
  Offers a comprehensive specification for allocating functions from IEC 62290-2 to subsystems, ensuring consistent interoperability and compliance with operational needs.

Applications

IEC 62290-3:2025 serves as a crucial guideline for transport authorities, system integrators, and manufacturers engaged in:

• Designing Urban Guided Passenger Transit Systems
  Architects and engineers can use this standard to build interoperable UGTMS that support varying automation levels from manual to unattended operation.

• Upgrading Existing Transit Systems
  Supports modernization projects by guiding the integration of new UGTMS equipment while maintaining compatibility and interchangeability with existing infrastructure.

• Request for Proposal (RFP) Development
  Enables transport authorities to create baseline system descriptions and functional requirement specifications for procurement of command, control, and management systems.

• Ensuring Interoperability and Standard Compliance
  Promotes international uniformity among urban transit systems, fostering cross-vendor compatibility and streamlined operations.

• Supporting Continuous Data Transmission and Supervision
  Focuses on urban transit applications that use continuous train movement supervision, onboard localization, and optionally external wayside devices.

Related Standards

• IEC 62290-1: Urban Guided Transport Management and Command/Control Systems - Functional Architecture
  Defines the overarching architecture and environment of UGTMS, which IEC 62290-3 further specifies at the system requirement level.

• IEC 62290-2: Urban Guided Transport Management and Command/Control Systems - Functional and System Requirements
  Establishes detailed functional requirements for UGTMS, which are allocated within IEC 62290-3 to distinct subsystems for implementation.

• Supplementary Railway Signaling and Control Standards
  While IEC 62290-3 focuses on urban guided transport, coordination with other international railway signaling and safety standards is essential for integrated transit solutions.

Keywords: IEC 62290-3, urban guided transport, UGTMS, command/control systems, railway standards, system requirements specification, public transport automation, transit signaling, rail network architecture, railway subsystem integration, train supervision, transport system upgrades, interoperability standards.