Overview
IEC 62267:2009 is an international standard developed by the International Electrotechnical Commission (IEC) that addresses safety requirements for Automated Urban Guided Transport (AUGT) systems. These systems operate fully or partially without drivers or attendants on exclusive guideways, such as automated metro lines and driverless urban transit systems. The standard defines high-level safety requirements crucial for compensating for the absence of onboard personnel responsible for train operations depending on the automation level.
This document provides a comprehensive framework for ensuring safe system design, operation, and maintenance in automated urban railway applications. It covers safety aspects ranging from hazard analysis to emergency management and operational procedures, tailored specifically to AUGT systems.
Key Topics
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Scope and Application Conditions
Focuses on high-level safety requirements for driverless or unattended self-propelled trains operating on dedicated guideways in urban environments, including terminology and definitions relevant to automated transport systems.
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System Description and Boundaries
Details the architecture of the system including stations, trains, guideways, and depots, outlining the operational limits and interfaces critical for safety.
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Hazard Analysis and Identification of Risk Scenarios
Includes supervised safety measures to prevent collisions with obstacles or people, injury prevention in passenger transfer zones, control of train status, and management of emergency situations.
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Safety Requirements for System Elements
Addresses safeguards for platforms (both open and enclosed), trains (door supervision, emergency exits, derailment detection, fire and smoke detection), guideways (intrusion detection, physical barriers), and transfer areas.
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Operational Rules and Emergency Procedures
Specifies rules for emergency evacuation, fire emergencies, vandalism, and stranded train removal; instructions for safe start-up and shut down of operations.
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Safety Verification and Documentation
Describes verification processes, documentation requirements, and responsibilities essential for confirming compliance throughout the lifecycle of AUGT systems.
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Upgrading Existing Systems
Provides guidance on safety requirements when upgrading conventional lines to driverless train operations (DTO) or unattended train operations (UTO).
Applications
IEC 62267:2009 applies to a wide range of urban automated guided transport systems, including:
- Driverless metros and light rail transit systems operating without onboard staff
- Fully automated people movers at airports or urban centers
- Urban transit networks employing unattended train control for improved efficiency and safety
- New installations and existing systems transitioning to higher grades of automation
- Systems designed to ensure passenger safety during unattended operation in critical areas such as platforms, guideways, and transfer points
Adopting IEC 62267 ensures that safety is systematically managed during the design, installation, commissioning, and maintenance of automated transit systems, thereby reducing operational risks and safeguarding passengers, staff, and the public.
Related Standards
- IEC 62278 – Railway applications: Specification and demonstration of reliability, availability, maintainability and safety (RAMS)
- IEC 61508 – Functional safety of electrical/electronic/programmable electronic safety-related systems
- IEC 62425 – Safety-related communication in signaling systems
- ISO 2382 – Vocabulary of terms in automation and control
- Various national standards and regulations for urban transit safety and railway operations
Compliance with IEC 62267 complements these standards by focusing specifically on safety requirements unique to automated urban guided transport, especially where drivers or attendants are absent.
Keywords: IEC 62267, automated urban guided transport, AUGT safety, driverless train safety, unattended train operation, urban transit automation, railway safety standard, platform safety, guideway safeguards, emergency procedures for automated trains, railway hazard analysis, IEC railway standards.
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