Official UK procurement notice
3rd Line Support for the Maintenance of the London Overground WestCAD & SSI Interlocking
Authority: Docklands Light Railway Limited (Public body)
What is being bought
Published requirement descriptionThis 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 period is £135,000 (excluding VAT).
The lotProcurement structure
single lot · no lot value publishedLot #1Awarded
Procedure terms & legal framework
From the official record- Procedure method
- Below threshold - without competition
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Notice status
- Awarded without competition
- Procurement threshold
- Unspecified in notice
- Regulatory regime
- Utilities
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Direct award (no call for competition)
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 24 Apr 2025, 13:10 BST
- Last source update
- 24 Apr 2025, 13:10 BST
- Authority reference
WS2371076555- FTS notice number
2025/S 000-016771- Latest notice
- Transparency notice (UK5)
- Delivery area
- Official registry OCID
ocds-h6vhtk-0506f8Find a Tender
Notice history
2 events · 1 release on Find a Tender · since 24 Apr 2025- Transparency notice published24 Apr 2025, 13:10 BSTUK5
- Contract signature expected24 Apr 2025, 23:59 BSTscheduled
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| SIEMENS MOBILITY LIMITEDThird line Support by Siemens Mobility Limited for the Maintenance of the London Overground WestCAD & SSI Interlocking24 Apr 2025 – 31 Jul 2026 | £135,000 | — | Standstill |
Contracting authority & participating public bodies
Bidders & participating suppliers
1 commercial party on the notice- SIEMENS MOBILITY LIMITEDAwarded supplier
Official documents & specifications (1)
Official links; attachments are not copiedNotices published for this procedure
- Transparency notice Transparency notice on Find a Tender