| Publicly Available Documents | Size (kB) |
| Only Available after Expression of Interest |
| ERTMS - Invitation to Tender (ITT) DRAFT.pdf |
| ERTMS Stage 2A Scope of Services v0.1 DRAFT.pdf |
| ITT Stage Documents.zip |
| LSPH -OPS-2026-14 ERTMS PSQ CLARIFICATION RESPONSE.docx |
| Procurement Specific Questionnaire Docs.zip |
| PSQ Spreadsheet - ERTMS - Revision 1.xlsx |
| PSQ Spreadsheet - ERTMS - Revision 2.xlsx |
| PSQ Spreadsheet - ERTMS - Revision 3.xlsx |