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3rd Line Support for the Maintenance of the London Overground WestCAD & SSI Interlocking

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What the buyer wrote

This is a single source for the Third line support and maintenance contract for the WestCAD signalling control and display system (SCDS) and the Solid-State Interlocking (SSI) which were developed by and installed by Siemens Mobility Limited for signalling control on the London Overground Core Windrush Line (formerly East London Line). The contract will end on the 31st July 2026. This contract undertakes 3rd line support should faults not be rectified locally across the line. Siemens provide a 24/7 diagnostic hotline, all operational spares, escalation of fault to expert if unable to resolve and the availability of system experts in hardware/software. This is estimated to cost during this …

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Awarded to

Siemens Mobility Limited£135kends (31 Jul 2026)

Details

What the buyer calls it
3rd Line Support for the Maintenance of the London Overground WestCAD & SSI Interlocking
How they are buying
Given to one supplier, no competitionNobody else was asked, and the buyer has to be able to justify that.
Work starts
23 Apr 2025
Work ends
31 Jul 2026
Where
in London

Who the buyer named

Molly Beaumont was the named contact on this notice.

MollyBeaumont@tfl.gov.uk