---
title: "Infrastructure Monitoring Core Service"
ocid: "ocds-h6vhtk-050f71"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-050f71"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-050f71.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-050f71.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "NETWORK RAIL INFRASTRUCTURE LIMITED"
published: "2025-08-29"
---

# Infrastructure Monitoring Core Service

Buyer: NETWORK RAIL INFRASTRUCTURE LIMITED  
Current stage: Tender  
OCID: ocds-h6vhtk-050f71

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## Summary

The procurement process for an end-to-end Infrastructure Monitoring Core Service is being led by Network Rail Infrastructure Limited, a central government public authority based in London. This initiative is intended to replace the existing Infrastructure Monitoring fleet to ensure the safe operation of the Great Britain rail network. The procurement pertains to railway services, embracing both train and non-train borne methods, with the tender stage currently active. Suppliers are invited to submit their expressions of interest by 9th October 2025, with the contract slated to begin in April 2027. Key interactions, including a briefing on 9th September in Milton Keynes, will safeguard potential suppliers' understanding of expectations and compliance criteria under the Competitive Flexible Procedure as governed by the Procurement Act 2023.

This tender offers significant growth opportunities for businesses specialising in infrastructure monitoring solutions, railway technology enhancements, and innovative data collection methods. Companies with expertise in rolling stock maintenance, railway-track inspection, IT services, or UAV technology are well-positioned to compete. The process encourages technical dialogue and negotiation, enabling the integration of cutting-edge developments while driving social value and sustainability. It presents an expansive service scope, allowing adaptability to technological advancements and changing operational demands. Hence, firms able to demonstrate financial health and technical innovation, especially those committed to net-zero goals, have favourable prospects in this large-scale procurement valued at approximately £1.5 billion.

## Notice

Network Rail ("the Authority") is procuring an end to end Infrastructure Monitoring (IM) solution to replace its life expired dedicated IM fleet and assure the safe, reliable and efficient operation of the Great Britain rail network. The supplier will provide, operate and maintain the assets, systems and services necessary to capture, process, assure and deliver all required IM data streams to Network Rail's Enterprise Data Platform, in accordance with relevant Measurement Standards and IM Data Specifications, so that the Authority receives the right data, in full and on time, for use by end customers across Regions and Routes. The solution may combine dedicated IM rolling stock, in service monitoring (on timetabled passenger or freight services) and, where appropriate on a cost-benefit basis, non train borne methods (e.g., Road-Rail Vehicle (RRV)), provided all applicable law, policy and standards are met. The supplier will act as Entity in Charge of Maintenance (ECM), manage obsolescence, ensure approvals for operation on the British network, and deliver services against a jointly maintained Joint Operating Plan. Network Rail will not purchase or own the solution assets. Core scope of services and outputs * Data capture & delivery: Provision of 18 IM data streams to the Authority's defined structures/formats (open, non proprietary) and timelines, including urgent reporting for safety critical findings. Data assurance (including ISO 8000 aligned data quality regime), secure handling/retention, and transmission (default use of Network Rail telecoms where suitable) are in scope. * Operations: Plan, crew and run IM activities in accordance with the Joint Operating Plan (dedicated paths arranged by Network Rail; in service paths orchestrated by the supplier with the relevant TOC/FOC). The solution must minimise non recording mileage and timetable capacity consumption (e.g., by operating closer to line speed) and be resilient to disruption (e.g., recovery runs to protect maximum measurement intervals). * Maintenance & reliability: Provide serviceable, compliant, calibrated assets/systems designed for reliability, maintainability and ease of operation; hold/maintain necessary licenses/approvals (including ORR requirements) and product acceptance; manage spares, calibration, and certification. * Continuous improvement & innovation: Deliver ongoing efficiency/performance improvements and proactively stimulate market innovation against Network Rail's future ambitions, using open architectures that mitigate vendor/technology lock in and enable integration of best of breed systems via change control where approved. * Performance management: Meet a KPI regime covering service reliability, on time delivery, completion rate, data compliance, data quality, user satisfaction, continuous improvement, innovation, social value, safety, and environment/sustainability. * Mobilisation & transition: Mobilise new solution per tendered plan; as capabilities enter service, Network Rail will decommission the current IM fleet. Supplier support may be requested for advice during transition. Minimum data streams in scope * Rail flaw detection. * Rail depth. * Rail surface crack. * Rail profile (wear). * Track bed condition (e.g., ballast depth/fouling). * Structure gauging. * Platform gauging. * Track intervals (six foot gauging). * Ballast profile. * Track geometry. * Track imagery (shoulder to shoulder). * Automated track inspection. * Static OLE geometry. * OLE contact wire wear. * Conductor rail geometry. * Conductor rail wear. * Forward facing imagery. * Communications networks signal strength (e.g., GSM R, public mobile). Standards, compliance and constraints Data streams must meet the relevant Measurement Standards and Data Specifications (e.g., NR/L2/TRK series, NR/L2/ELP/27325, NR/L2/TRK/3204, NR/L2/TRK/038, etc.), with delivery frequencies adhering to nominal and maximum intervals defined per track section in the Baseline Coverage Requirements. The solution must comply with applicable law and Railway Group Standards, data protection/security requirements, and environmental/sustainability obligations; emissions reduction (e.g., electric where feasible, electro diesel where necessary) is expected. Out of scope Analysis of data beyond the IM Data Specifications, and the operation, maintenance and disposal of the existing IM fleet.

### Lot Information

Lot 1

Options: The contract will have an initial term of eight (8) years, with two optional extensions of four (4) years each, allowing for a maximum total duration of sixteen (16) years, plus an additional two (2) years of termination assistance if required. The estimated total contract value, including all options, is approximately PS1.5 billion. Optional elements within the contract include: Extension Options: * First extension: up to 4 years * Second extension: up to 4 years Extensions will be exercised at Network Rail's discretion, subject to performance, funding availability, and strategic review of technology developments. Termination Assistance: * Up to 2 years of continued service and transition support at the end of the contract term to ensure continuity and safe handover. Service Scope Options: * Additional data streams beyond the initial 18 specified in the core requirement, to accommodate evolving business needs and technological advancements. * Increased or decreased network coverage or service frequency, triggered by changes in standards or operational requirements. Optional processing stages for IM data: * Stage 1-2: Raw data capture and post-capture interpretation (including near real-time reporting of severe defects). * Stage 3: Feature identification and fault detection. * Stage 4-5: Advanced interpretation and analytics for selected data streams. These options allow Network Rail to scale the level of data processing and analytics during the contract term. Innovation and Technology Roadmap: * Incorporation of new technologies or methods identified through the supplier's Technology Roadmap, subject to Network Rail approval and contract variation. Change Control Mechanism: * A structured process for introducing new capabilities, adjusting service levels, or implementing innovations, supported by a "true-up" pricing mechanism.

Renewal: The contract will have an initial term of eight (8) years, with two optional extensions of four (4) years each, allowing for a maximum total duration of sixteen (16) years, plus an additional two (2) years of termination assistance if required.

### Planning Information

A briefing document will be available on Network Rail's Bravo Portal from the date of release of the notice.
1. Follow the link: https://networkrail.bravosolution.co.uk/web/login.html
2. From the welcome screen, access the “View Current Opportunities” link and select “IM Programme Core Services”. No login is required.
3. Click on the attachment “Preliminary Market Engagement Brief May 2025”.
A briefing call will be held on 9th May 2025. Please refer to the briefing document for further details. Following this call, we intend to release key documents to provide clarity on the exact scope of this procurement, along with a questionnaire to allow you to provide feedback.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/052460-2025 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | SME, VCSE |
| Awardee scale | Not specified |
| All stages | Planning, Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 29 Aug 2025 |
| Submission deadline | 25 Sep 2025 |
| Future notice date | 16 Jun 2025 |
| Award date | Not specified |
| Contract period | 31 Mar 2027 - 31 Mar 2035 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1,500,000,000 |
| Lots value | £1,500,000,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Active |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NETWORK RAIL INFRASTRUCTURE LIMITED |
| Locality | LONDON |
| Post town | South East London |
| Postcode | SE1 8SW |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI45 Lambeth |
| Local authority | Lambeth |
| Electoral ward | Waterloo & South Bank |
| Westminster constituency | Vauxhall and Camberwell Green |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 34 - Transport equipment and auxiliary products to transportation
- 35 - Security, fire-fighting, police and defence equipment
- 50 - Repair and maintenance services
- 71 - Architectural, construction, engineering and inspection services
- 72 - IT services: consulting, software development, Internet and support

### Codes

- 34611000 - Locomotives
- 34620000 - Rolling stock
- 34621000 - Railway maintenance or service vehicles, and railway freight wagons
- 35613000 - Unmanned aerial vehicles
- 50220000 - Repair, maintenance and associated services related to railways and other equipment
- 50225000 - Railway-track maintenance services
- 71355000 - Surveying services
- 71631470 - Railway-track inspection services
- 71700000 - Monitoring and control services
- 72222300 - Information technology services
- 72225000 - System quality assurance assessment and review services
- 72228000 - Hardware integration consultancy services

## Release History

- 29 Aug 2025 at 12:43 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/052460-2025
- 21 Aug 2025 at 15:20 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/050635-2025
- 9 May 2025 at 09:28 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/019963-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/052460-2025
  29th August 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/050635-2025
  21st August 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/019963-2025
  9th May 2025 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- https://networkrail.bravosolution.co.uk/
- https://networkrail.bravosolution.co.uk/web/login.html
- https://www.legislation.gov.uk/ukpga/2023/54/contents
- https://www.networkrail.co.uk/

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-050f71. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-050f71.json.