Network Rail has formally launched the procurement of a new, end-to-end Infrastructure Monitoring (IM) solution, designed to replace its life-expired dedicated IM fleet and ensure the safe, reliable and efficient operation of the Great Britain rail network.
The long-term contract, valued at approximately £1.5bn excluding VAT, will see a supplier provide, operate and maintain a comprehensive monitoring service, delivering critical asset and track data directly into Network Rail’s Enterprise Data Platform. This approach will move away from Network Rail owning monitoring trains and equipment, with the supplier instead responsible for providing and maintaining the full service.
The IM solution will capture, process, assure and deliver 18 essential data streams – including rail flaw detection, track geometry, overhead line measurements, conductor rail wear, forward-facing imagery, and communications network signal strength – all to defined standards and timescales. This data will enable Network Rail and its regional teams to make timely decisions to keep Britain’s railways safe and performing efficiently.
The service could be delivered using a mix of dedicated IM rolling stock, in-service monitoring on timetabled passenger or freight trains, and, where cost-effective, non-train borne methods such as road-rail vehicles. The supplier will act as the Entity in Charge of Maintenance (ECM), manage obsolescence, secure all necessary approvals, and deliver operations under a Joint Operating Plan agreed with Network Rail.
Key elements of the service include:
- Data capture and delivery: Providing assured, secure and timely monitoring data in open formats.
- Operations: Running IM services efficiently while minimising timetable impacts.
- Maintenance and reliability: Ensuring calibrated, serviceable and compliant systems at all times.
- Continuous improvement and innovation: Stimulating technology advancement and avoiding vendor lock-in.
- Performance management: Meeting a robust KPI regime covering safety, reliability, sustainability, and user satisfaction.
The initial contract is expected to run from 1 April 2027 to 31 March 2035, with two optional four-year extensions available. This could extend the contract to 2043, plus a further two years for transition support if required.
Sustainability will play a key role, with suppliers expected to align with the UK’s net zero commitments, reduce emissions by deploying electric or electro-diesel traction where feasible, and support social value initiatives such as diversity, fair pay, and modern slavery compliance.
The procurement process will assess suppliers on their technical experience, innovation track record, financial capacity, and commitment to regulatory and environmental standards. Candidates must also hold or obtain a non-passenger operator licence from the Office of Rail and Road and demonstrate compliance with ISO 27001 or Cyber Essentials Plus for information security.
This procurement marks one of the most significant modernisation steps in rail monitoring, with Network Rail emphasising its commitment to embracing innovation, data quality and sustainability, while ensuring Britain’s railway continues to run safely and efficiently for the years ahead.
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