Welcome to the Infrastructure Manager pages for Seilwaith Amey Cymru / Amey Infrastructure Wales Limited (AIW)
This site hosts consultations run by AIW in respect of the role it undertakes as Infrastructure Manager for the railway network running from Cardiff to Treherbert, Aberdare, Merthyr Tydfil, Coryton, Rhymney and Cwmbargoed (known as the Core Valleys Lines).
The Core Valley Lines network was transferred from Network Rail to Transport for Wales on 28 March 2020. Transport for Wales lease the assets to AIW who are Infrastructure Manager for the Core Valley Lines network.
If you would like to respond to any of the documents issued for consultation below, please contact CVLTrackAccess@amey.co.uk prior to the specified closing date.
For more info see Core Valley Lines Infrastructure Manager.
Open consultations
Document | Issue date | Closing date |
| CVLNC017 STNC Cwmbargoed branch line Notice 23-05-2025 | 23 May 2025 | 27 June 2025 |
Closed consultations
| Document | Issue Date | Closing Date |
| CVL G1 Network Change CVLNC016 Short Term Network Change Hirwaun Branch | 22 April 2025 | 22 May 2025 |
| Consultation Document CVL G1 Network Change Proposal CVLNCCP02-G1-02 Cardiff Bay | 28 March 2025 | 28 April 2025 |
| v2 Consultation Document CVL G1 Network Change Proposal CVLNC015 for the Transformation Programme 161024 | 16 October 2024 | 7 November 2024 |
Cover Letter TFWRL 14th Supplemental Agreement Consultation For consultation draft TFW Rail Ltd 14th SA to CVL Passenger TAC For consultation TFWRL 14th SA - rights amendment form-p For consultation TFWRL 14th SA Marked-up Table 2.1a Passenger Train Slots | 1 October 2024 | 1 November 2024 |
| Consultation Document CVL G1 Network Change Proposal CVLNCCP02-G1-01 for the Transformation Programme v2 200924 | 20 September 2024 | 20 October 2024 |
CVL Network Statement 2026 - covering letter for industry consultation August 2024 CVL NETWORK STATEMENT 2026 Draft for Consultation 0.1 issue | 20 August 2024 | 20 September 2024 |
| Consultation Document CVL G1 Network Change Proposal CVLNCCP01-G1-05-V2 for the Pontypridd Blockade Weeks 27-28 2024 | 14 August 2024 | 13 September 2024 |
Cover Letter TFWRL 11th Supplemental Agreement Consultation Industry Consultation TFWRL 11th Supplemental Agreement to CVL Passenger TAC Industry Consultation TfW Rail 11th SA (Future Dated Rights) Form P | 6 August 2024 | 6 September 2024 |
v0.1 TfW Rail 12th SA (TAC Expiry) Form P Cover Letter TFWRL 12th Supplemental Agreement Consultation v0.1 Draft TFWRL 12th Supplemental Agreement to CVL Passenger TAC | 22 April 2024 | 22 May 2024 |
| CVLNC013 STNC Hirwaun Branch Notice | 10 April 2024 | 10 May 2024 |
Cover Letter Railadventure UK Limited (Freight) 1st Supplemental Agreement Consultation Cover Letter Railadventure UK Limited (Charter) 1st Supplemental Agreement Consultation | 28 February 2024 | 15 March 2024 |
| Consultation Document CVL G1 Network Change Proposal CVLNCC012 Cardiff Queen Street 9454 points | 26 January 2024 | 25 February 2024 |
Cover Letter Industry Consultation CVL G5 Notice of Intended Scope CVLNC-CP02-G5 CVL G5 Notice of Intended Scope for the Transformation Programme to be implemented during 2024 | 23 January 2024 | 24 February 2024 |
| Network Code Condition G1 Network Change Proposal: Variation 1 to the Establishment of the Commissioning and Overhead Line Electrification System ("OLE") from Pontypridd to Treherbert (CVLNCCP01-G1-05) | 7 January 2024 | 22 January 2024 |
A TfW CVL Vehicle Change proposal Class 756 v2 B CVLVC005 CVL IM Vehicle Change notice to consultees - TFWRL Class 756 | 17 November 2023 | 12 January 2024 |
Industry Consultation Section 18 RailAdventure UK CVL Freight TAC application - Cover Letter RailAdventure UK Limited Freight Services Application Form F Industry Consultation Annex 1 Rationale for Model Contract deviation - Freight Charter Redacted for consultation CVL Freight Track Access Agreement Rail Adventure UK | 11 December 2023 | 23 December 2023 |
0.3 Redacted for consultation CVL Charter Track Access Agreement RailAdventure UK Annex 1 Rationale for Model Contract deviation - Freight Charter Industry Consultation Section 18 RailAdventure UK CVL Charter TAC application - Cover Letter RailAdventure UK Limited Charter passenger-access-application-form P Industry Consultation | 11 December 2023 | 23 December 2023 |
Industry consultation cover letter Draft Transport for Wales Rail Ltd 9th Supplemental Agreement Form P for proposed Transport for Wales Rail Ltd 9th Supplemental Agreement PDF document showing current and proposed versions of Schedule 5 Table 2.1 PDF document showing current and proposed versions of Schedule 5 Table 4.1 | 11 December 2023 | 18 December 2023 |
CVLVC004 Standard Form C - CVL IM Vehicle Change notice to consultees - TFWRL Class 398 TfW CVL Vehicle Change proposal Class 398 v2 | 26 September 2023 | 10 November 2023 |
Charging review for consultation 100923 AIW CVL Network Access Charges Review consultaion cover letter 08-09-2023 | 9 September 2023 | 9 November 2023 |
Cover Letter TFWRL 8th Supplemental Agreement Consultation Draft TFWRL 8th Supplemental Agreement to CVL Passenger TAC Draft Form P TFWRL 8th SA Schedule 5 2.1 table TFWRL 8th Supplemental MARKED UP | 25 August 2023 | 25 September 2023 |
CVL G1 Network Change proposal CVLNC011 - covering letter Proposed CVL Railway Operating Code Sections CVL IM ROC Section 1 v2 CVL IM ROC Section 2 - Emergency Timetabling Procedure CVL IM ROC Section 3 - Adverse and Extreme Weather CVL IM ROC Section 4 - Train Regulation Policies V2 CVL IM ROC Section 5 - Track Blockages and Failed Trains CVL IM ROC Section 6 - Customer Information V3 | 22 August 2023 | 22 September 2023 |
CVL Network Statement 2025 - covering letter for industry consultation August 2023 CVL NETWORK STATEMENT 2025 issue 0.1 - Draft for Consultation | 1 August 2023 | 1 September 2023 |
CVLNC010 Addition of class 231 to Sectional Appendix D1A tables Appendix B1 Class 231 Summary of Compatability Appendix B2 Class 231 CVL IM Establishment of Vehicle Change | 17 July 2023 | 14 August 2023 |
| CVL Network Code G1 Network Change Proposal - Variation 1 to the Establishment of the Overhead Line Electrification System (“OLE”) Commissioning (CVLNCCP01-G1-03) | 19 June 2023 | 19 July 2023 |
| CVL Network – CVL Network Code Condition G1 Network Change Proposal - Commissioning and OLE from Pontypridd to Treherbert | 19 June 2023 | 19 July 2023 |
Transport for Wales Rail Ltd 7th SA Form P Draft for consultation Cover Letter TFWRL 7th Supplemental Agreement Consultation Annex A Comparison Sch 7 v Revised Model A Schedule 7 Annex B Comparison Sch7 v Revised Model B Schedule 7 Annex C CVL TERs - Version 1 100523 Annex D 7th Supplemental AIW TfWRL Draft for consultation Annex E Consultation list for TFWRL 7th Supplemental Agreement | 12 June 2023 | 8 July 2023 |
| CVLNC009 Sectional Appendix D1A tables | 22 May 2023 | 22 June 2023 |
| Consultation Document CVL G3 Network Change Proposal CVLNC-G3-001 for the TfW Installation of Beacons on CVL Development and Use of a new RFID Application Code | 28 April 2023 | 17 June 2023 |
Appendix C – Application Code and RIS-2795-RST Track to Train RFID Compatibility BU_3520505_h (Power Mode Control Application Code) RIS-2795-RST - Track to Train RFID Compatibility | 28 April 2023 | 17 June 2023 |
| CVL Network – Network Code Condition G1 Network Change Proposal: Variation 1 to the Establishment of the TAM Commissioning (CVLNCCP01-G1-02-V1) | 14 April 2023 | 6 May 2023 |
| CVL Network Code Condition G1 Network Change Proposal: ECR within the CVLICC and Temporary Operational Arrangements for Taff’s Well Depot | 13 March 2023 | 13 April 2023 |
| G1 Network Change Proposal: Overhead Line Electrification System (OLE) Commissioning | 10 March 2023 | 10 April 2023 |
| G1 Network Change Proposal: TAM Commissioning | 9 February 2023 | 13 March 2023 |
| Network change | 18 January 2023 | 17 February 2023 |
Industry Consultation - redacted draft CVL - Track Access Agreement Charter V3.pdf Industry Consultation Section 18 Vintage Trains Limited CVL Charter TAC application - Cover Letter.pdf Rationale for Model Contract deviation - Freight Charter.pdf | 13 January 2023 | 12 February 2023 |
1.5 Industry consultation redacted draft GBRf CVL Charter Track Access Agreement v3 Annex 1 Rationale for Model Contract deviation - Freight Charter Industry Consultation Section 18 GBRf CVL Charter TAC application - Cover Letter | 23 December 2022 | 24 January 2023 |
| Cover Letter - CVL G5 Complex Project Procedure | 28 November 2022 | 29 December 2022 |
| Consultation Document CVL G5 Notice of Intended Scope for the Transformation Programme | 28 November 2022 | 29 December 2022 |
| Appendix A Scope Diagram And Commissioning Dates Diagram TRAN01-KAW-ZZ-CVL-YPA-Z-MF-000001 | 28 November 2022 | 29 December 2022 |
| Appendix C Signalling Scheme Plans 19-CVL-04_01 A03_Merthyr SSP_AFC 19-CVL-04_02 A04_Aberdare SSP_AFC 19-CVL-04_03 A01_Treherbert SSP_AFC 19-CVL-04_04 A03_Abercynon SSP_AFC 19-CVL-04_05 A02_Pontypridd SSP_AFC 19-CVL-04_06 A02_Radyr SSP_AFC 19-CVL-04_07 A01_City Line SSP_AFC 19-CVL-04_08 A01_Llandaff SSP_AFC | 28 November 2022 | 29 December 2022 |
| Appendix D OLE Sectioning Diagrams Section diagram TAM (TRAN01-PSP-ZZ-CVL-DDR-Y-EP-000001-S2-P03) Section diagram TAM (TRAN01-PSP-ZZ-CVL-DDR-Y-EP-000002-S2-P03) | 28 November 2022 | 29 December 2022 |
| Cardiff Bay Line of Sight - Removal of Rolling Stock Consultation | 25 November 2022 | 23 December 2022 |
| CVLVC003 Standard Form C - CVL IM Vehicle Change notice to consultees - TFWRL Class 231 | 9 September 2022 | 31 October 2022 |
| TfW CVL Vehicle Change proposal Class 231 FINAL | 9 September 2022 | 31 October 2022 |
| CVL NETWORK STATEMENT 2024 issue 0 .1 for consultation | 2 October 2022 | 3 October 2022 |
| CVL Network Statement 2024 - covering letter for industry consultation September 2022 | 2 October 2022 | 3 October 2022 |
| Cardiff Bay Line Status - Standard Form A CVL G1 Network Change Notice v1 | 26 August 2022 | 22 September 2022 |
| Cover Letter - CVL G5 Proposed Complex Project Procedure | 30 June 2022 | 30 July 2022 |
| CVL AIW G5 Proposed Notice of Complex Project FINAL 30-06-2022 | 30 June 2022 | 30 July 2022 |
| Transformation Disruptive Access Plan 2022 - 2023 | 30 June 2022 | 30 July 2022 |
| 19-CVL-04_01 A02_Merthyr SSP_AFC | 30 June 2022 | 30 July 2022 |
| 19-CVL-04_02 A03_Aberdare SSP_AFC | 30 June 2022 | 30 July 2022 |
| 19-CVL-04_03 A01_Treherbert SSP_AFC | 30 June 2022 | 30 July 2022 |
| 19-CVL-04_04 A02_Abercynon SSP_AFC | 30 June 2022 | 30 July 2022 |
| 19-CVL-04_05 A01_Pontypridd SSP_AFC | 30 June 2022 | 30 July 2022 |
| 19-CVL-04_06 A01_Radyr SSP_AFC | 30 June 2022 | 30 July 2022 |
| 19-CVL-04_07 A01_City Line SSP_AFC | 30 June 2022 | 30 July 2022 |
| 19-CVL-04_08 A01_Llandaff SSP_AFC | 30 June 2022 | 30 July 2022 |
| Cover Letter TFWRL 4th Supplemental Agreement Consultation (1) | 8 June 2022 | 8 July 2022 |
| 4th Supplemental Agreement to CVL Passenger TFWRL For consultation | 8 June 2022 | 8 July 2022 |
| (4) Form P TFWRL 4th SA for Consultation | 8 June 2022 | 8 July 2022 |
| TFWRL TAC Schedule 5 2.1 marked up table for consultation | 8 June 2022 | 8 July 2022 |
| Hirwaun Temporary Net Change Form A CVL G1 Network Change Notice | 13 April 2022 | 13 May 2022 |
| Cardiff area and CVL Network Timetable Working Group TTWG invitation as sent on 28-01-2022 | 31 January 2022 | 10 February 2022 |
| Radyr Network Change Form A CVL G1 Network Change Notice | 10 January 2022 | 8 February 2022 |
CVL RES - Charter Track Access Agreement differences to ORR model - for consultation (redacted) CVL RES proposed final Charter TAC- version for consultation (redacted) Rationale for Model Contract Deviation - Charter final RES Charter TAA_ Form P - final 23-12-21 RES TAC Industry Consultation letter - final | 23 December 2021 | 24 January 2022 |
AIW FL 2nd Supplemental Form F consultation AIW FL 2nd Supplemental Agreement consultation Section 22 2nd proposed Supplemental Agreement between Seilwaith Amey CymruAmey Infrastructure Wales Ltd and Freightliner Ltd | 28 October 2021 | 26 November 2021 |
CVL 2023 Network Statement 0.1 draft for consultation CVL Network Statement 2023 - covering letter for industry consultation 03-09-2021 | 4 September 2021 | 4 October 2021 |
| CVL NC5 G1 Form A Network Change notice re new SC PSRs Aberdare operating | 13 July 2021 | 11 August 2021 |
Rhymney Station Annex of form C CVL Rhymney Connection Contract Connection Contract at Rhymney LMD consultation cover letter RHYMNEY connection-contract-app-form-c | 21 April 2021 | 21 May 2021 |
| Consultation on Amendments to the Standard Forms Forms A-X used for CVL Network Changes pursuant to Condition GA1.5 (b) (v) of the CVL Network Code | 10 April 2021 | 7 May 2021 |
| Taffs Well Station change proposal | 9 March 2021 | 16 April 2021 |
| CVL Network Change to create a Light Maintenance Depot (“LMD”) | 29 January 2021 | 28 February 2021 |
| AKIL Vehicle Change consultation notice on behalf of KAOL for class 769s via Radyr | 1 December 2020 | 19 January 2021 |
| CVL Network Statement 2022 CVL Network Statement 2022 | Cover Letter | 11 August 2020 | 11 September 2020 |
| Consultation on Standard Forms | 15 June 2020 | 15 July 2020 |
| Proposed G1 Short Term Network Change under the Core Valley Lines (CVL) Network | 30 March 2020 | 30 April 2020 |
Section 22 1st Supplemental Agreement between KAOL and AKIL - consultation KA 1st Supplemental Agreement (May 20 additional rights) Application to the ORR for passenger track Agreement KAOL Final | 27 March 2020 | 26 April 2020 |
| AKIL consultation cover letter 24-11-2020 | 25 November 2019 | 24 December 2019 |
| AKI Safety Authorisation issue 2.0 Resubmission | 19 November 2020 | 19 December 2019 |
| Track Access Contract - Cwmbargoed | 18 November 2019 | 10 December 2019 |
| Track Access Contract - Freightliner Ltd | 25 October 2019 | 24 November 2019 |
| Track Access Contract - Freightliner Heavy Haul | 25 October 2019 | 24 November 2019 |
| Track Access Contract - Freight DB Cargo | 25 October 2019 | 24 November 2019 |
| Track Access Contract - GB Railfreight | 25 October 2019 | 24 November 2019 |
| Track Access Contract (Passenger Services) | 24 October 2019 | 22 November 2019 |
| Wales and Borders Rail Service and South Wales Metro Core Valley Lines | 9 October 2019 | 8 November 2019 |
| Consultation for Queen Street Connection Agreement | 31 July 2019 | 4 September 2019 |
| Consultation for Radyr Line Connection Agreement | 31 July 2019 | 4 September 2019 |
| Network Statement Cover Letter | 28 June 2019 | 28 July 2019 |
| Network Statement | 28 June 2019 | 28 July 2019 |
