Train operations – Community of Metros Benchmarking Group

Research: Congestion Management in Stations and Trains

October 3, 2024

As passengers continue to return to using metro more frequently post COVID-19, many metros have experienced constraints on train and station capacity. In some cases, this increased congestion can also result in safety issues that can have catastrophic impacts on customers and the reputation of the metros themselves.

This study summarised magnitude and trends in congestion on metro systems, and further looked at the implemented technologies that allow for mitigations to be put in place. It also identified emergency response and congestion management training that is provided to regular station staff and operational staff on trains.

An overview of best practices for managing congestion in stations and on trains is discussed in the report, with a focus on smaller and shorter-term solutions that can be deployed quickly by member metros.

Research: Operational Impacts of New Fleets

December 22, 2023October 31, 2023

Introducing new fleets is a major, transformative project for metro operators, so managing these projects and mitigating their impact on existing operations has been of interest to COMET members. The study proposer, Newcastle Nexus, has been replacing its entire fleet in recent years and thus is keen to discover metros’ experiences in this area to deploy best practices and minimise impacts.

Based on responses from 32 metros, the study explored key tasks, typical time periods, common issues, and implemented solutions during different stages of fleet introduction phase, starting from pre-commissioning stage to final acceptance. Examples of best practices for each stage were presented, along with a summary of metros’ recommendations for future fleet introductions with a focus on project planning, risk management, and quality control.

Research: COMET Preventing Human Failures in Train Operations and the OCC

May 19, 2021February 15, 2021

There are multiple reasons why metros are particularly affected by human failures, including operations and/or maintenance occurring 24-hours a day, human judgement involved in multiple safety critical situations, and the potential for unpredictable overtime. Across COMET metros, human failure caused the majority of collisions and derailments. Miscommunications and multi-tasking are considered the top two most influential factors on human failures.

The study focused on active human failures that directly lead to incidents. Active failures are categorised into errors and violations, which can be further sub-categorised by the underlying motive, intention, and/or frequency. Understanding active failure types supports greater understanding of the root causes of failure.

Figure to show categorises of active failure consisting of error and violation

The study reviewed strategies for preventing human failure including process, environment, and people-based solutions. One example for preventing human error is assessing fitness for duty among train drivers. Half of metros reported use of a checklist or declaration, with some metros use technology to address fatigue including monitoring attentiveness and encouraging sufficient rest for employees before their shift. While many of these measures are focused on train drivers, increasing automation within metros means that such measures are becoming just as important for OCC staff. Opportunity areas for metros to reduce operational risk of human failures are discussed, supported by good practices and future initiatives conducted by COMET metros.