---
title: "Central Line Signalling Incremental Upgrade (CSIP) Work Package 1 (WP1) Detailed Design and Build"
ocid: "ocds-h6vhtk-051c55"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-051c55"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-051c55.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-051c55.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "TRANSPORT FOR LONDON"
published: "2025-05-21"
---

# Central Line Signalling Incremental Upgrade (CSIP) Work Package 1 (WP1) Detailed Design and Build

Buyer: TRANSPORT FOR LONDON  
Current stage: Planning  
OCID: ocds-h6vhtk-051c55

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[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-051c55.json)

## Summary

Transport for London is planning a tender process titled "Central Line Signalling Incremental Upgrade (CSIP) Work Package 1 (WP1) Detailed Design and Build". This procurement concerns upgrades to the Central Line Signalling & Train Control System, focusing on obsolescence and reliability improvements. The procurement falls under the construction industry, with a main focus on works in the utilities sector. Located in London, the planning stage of this process is publicly announced with a future notice date set for 31st August 2026, and the contract period expected to begin on 10th August 2027. Key roles within the buying organisation include individuals like Georgeta Martinez who is responsible for contact and coordination.

This tender process offers substantial opportunities for businesses specialising in construction, engineering, and particularly those with expertise in railway signalling systems. It invites firms adept at design, integration, and execution of advanced train control systems to contribute to this critical infrastructure project. Such a large-scale, high-value undertaking provides potential for significant business growth and is well-suited to companies that can deliver innovative and reliable solutions for modernising rail systems. Businesses familiar with the utilities sector regulatory requirements and experienced in public sector contracting are especially advantageous in competing for this procurement opportunity.

## Notice

WP1 works will address obsolescence and reliability concerns within the Central Line Signalling & Train Control System (S&TCS) and will include the design, supply, integration, installation, testing and commissioning of a modified Automatic Train Control (ATC) S&TCS, such as: migration of the interlocking functionality to WESTRACE Mk2 Interlocking Controllers (ICs) on proprietary hardware; conversion of WESTRACE Mk1 interlocking machines to WESTRACE Mk1 Object Controllers (OCs) and deployment of S&TCS data network using MSN2, converting legacy serial data comms links to IP comms.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/024389-2025 |
| Notice type | UK1 - Pipeline Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 21 May 2025 |
| Submission deadline | Not specified |
| Future notice date | 31 Aug 2026 |
| Award date | Not specified |
| Contract period | 9 Aug 2027 - 9 Aug 2032 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | TRANSPORT FOR LONDON |
| Locality | LONDON |
| Post town | East London |
| Postcode | E20 1JN |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI41 Hackney and Newham |
| Local authority | Newham |
| Electoral ward | Stratford Olympic Park |
| Westminster constituency | Stratford and Bow |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45000000 - Construction work

## Release History

- 21 May 2025 at 18:26 - Planning - UK1 - Pipeline Notice - https://www.find-tender.service.gov.uk/Notice/024389-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/024389-2025
  21st May 2025 - Pipeline notice on Find a Tender

## Notice URLs

- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-051c55. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-051c55.json.