How can I verify the tender source and access bidding documents for “Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)”?

Taiyo’s tender pages link back to the originating system via https://data.open-contracting.org/en/publication/uk_find_tender, referencing Open Contracting Data Standard (OCDS) as the source. Users can follow the official link to download tender documents and submission instructions.

Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)

Q: What is the current bidding status of the tender “Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)”?

The status recorded for “Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)” is complete.

Complete · United Kingdom

Source: Open Contracting Data Standard (OCDS)

Tender

Complete

This variation relates to a 12‑month extension of the Early Contractor Involvement (ECI) contract with Siemens Mobility under the Central Line Signalling Incremental Upgrade Project (CSIP) for the Eastern section of the Central Line, known as Wayside East. In addition, approval is requested for an additional procurement authority to cover the 12 month extension budget.

Status: Closed
Location: United Kingdom
Updated: 3 Nov 2026
Source: Open Contracting Data Standard (OCDS)

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Tender Information

3 Q

The tender “Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)” is a tender record in Taiyo. It is issued for works, goods, or services related to United Kingdom.

Participants

Not available for this record.

Status

Original status	complete
Taiyo status	Closed
Taiyo last update	2026-11-03

Contact

Not available for this record.

Description

Location

Country

United Kingdom (UK)

Source

Source	Open Contracting Data Standard (OCDS)
URL

More Details

Record type	Tender
Article published date	2026-04-02

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Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)

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