SWR, Network Rail: Thermal Imaging for UK Rail Infrastructure Efficiency

Introduction

South Western Railway (SWR) and Network Rail are trialling thermal imaging technology on a Class 450 train, named ‘Hotshot’, to proactively address potential infrastructure issues and reduce train delays. The technology, which includes two cameras monitoring track conditions, is expected to improve safety and efficiency across the SWR network.

Technology Implementation

The ‘Hotshot’ train has been equipped with two cameras. One camera is positioned at the front of the train to monitor electrical issues on the tracks. Another camera is located underneath the train to oversee the shoe gear and third rail, which provide power to the train.

Operational Benefits

The cameras provide real-time alerts for issues such as overheating or faulty connections. These alerts enable better management of resources during incidents and are expected to reduce maintenance costs. On average, faults detected by the ‘Hotshot’ train could prevent approximately 200 minutes of delays. Previously, more severe problems related to conductor rails have caused delays exceeding 2,000 minutes.

Trial Details and Previous Results

The Class 450 trains operate on routes between Central London and Surrey, Hampshire, Berkshire, and Dorset. The trial represents the first instance of continuous monitoring across the majority of the SWR network. An earlier, limited trial in the Ashtead area of Surrey demonstrated the system’s effectiveness, rectifying a fault within 48 hours without passenger impact. A similar incident previously caused 2,500 minutes of delays.

Project Collaboration and Future Plans

The year-long trial is designed, managed, and funded by Angel Trains, in collaboration with SWR, Network Rail, One Big Circle, Siemens, and dg8 Design. If the trial is successful, the technology may be installed on additional trains within the SWR fleet, expanding coverage. This initiative follows similar thermal imaging monitoring introduced by South Eastern Railway.

Conclusion

The trial of thermal imaging technology by SWR and Network Rail, using the ‘Hotshot’ train, aims to proactively identify and address infrastructure issues. The project involves multiple partners and, if successful, may expand to include more trains in the SWR fleet.

Company Summary

South Western Railway (SWR): A train operating company serving routes in Southern England.

Network Rail: The owner and infrastructure manager of most of the railway network in Great Britain.

Angel Trains: A rolling stock leasing company.

Siemens: A technology company.

South Eastern Railway: A publicly owned operator under the DFTO.

One Big Circle: A technology company.

dg8 Design: A design company.

Technology

Thermal Imaging: A technology used to detect temperature variations, which can help identify potential issues in railway infrastructure.