Welcome to the Infrastructure Manager pages for Seilwaith Amey Cymru / Amey Infrastructure Wales Limited (AIW).  

This site hosts key regulatory documentation and other information in respect of the role AIW 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), as well as hosting consultations run by AIW.

The Core Valley Lines network was transferred from Network Rail to Transport for Wales on 28 March 2020.  Transport for Wales leases its assets to AIW who are the Infrastructure Manager for the Core Valley Lines network.  

  • The ORR’s applications, decisions and consolidated agreements for the CVL are available here
  • The CVL is covered by and operates in accordance the Rule Book (GE/RT8000) and other National Operations Publications, which are available here
  • The CVL is described in the National Electronic Sectional Appendix which is available here
  • For CVL access charges, AIW is using Network Rail’s Track Usage Pricelist until 31st March 2024 and is available here
  • The CVL is covered by the National Hazard Directory (NHD), here
  • The CVL is covered by Network Rail's Asbestos Risk Management System (ARMS), here
  • Rail Notices, here
  • Line blockages of the CVL network are obtained via the Green Zone Access Management (GZAM) system, here
  • Although we are an off-network member of the Delay Attribution Board, train delays on the CVL network under the performance regime are in accordance with the Delay Attribution Principles and Rules
  • The CVL Engineering Access Statement is contained within the Network Rail Engineering Access Statement and is available here

For information on current consultations being run by AIW please visit our Consultation Centre.

If you have any queries and/or would like to discuss access with us, please feel free to contact us at this email address: CVLTrackAccess@amey.co.uk

 

Infrastructure Manager Documentation

CVL Network Statement 2025 - issue 1.1 | English

CVL Network Statement 2025 - issue 1.1 | Welsh

CVL Network Statement 2025 - issue 1.1 | French

CVL Network Statement 2026 V1.1 | English

CVL Network Statement 2026 V1.1 | French

CVL Network Code V10 24th January 2025

CVL IM ROC Introduction and General Section

CVL IM ROC Section 1 - Control Arrangements

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

CVL IM ROC Section 5 - Track Blockages and Failed Trains

CVL IM ROC Section 6 - Customer Information

CVL Framework Capacity Statement

CVL Traction Electricity Rules - Version 1 November 2023

CVL Track Access Agreement - Freight template

CVL Track Access Agreement - Passenger template

CVL Track Access Agreement - Charter Template

CVL Track Access Agreement - network engineering services and on track machines Template

Stakeholder Relations Code of Practice general

Stakeholder Relations Code of Practice for new and potential operators

Management of congested infrastructure code of practice

 

CVL Network Change Template Letters

CVL Standard Forms Approval ORR 21-07-2020

CVL Standard Forms Cover Letter ORR 21-07-2020

CVL Standard Forms to be used for Network Change

A Standard Form A CVL G1 Network Change Notice

B Standard Form B CVL TOC preliminary response to G1 notice

C Standard Form C CVL G2 Network Change acceptance response from operators

D Standard Form D CVL G2 Network Change rejection response from operators

E Standard Form E CVL Non Access Party response to G1 Network Change

F Standard Form F CVL G3 Sponsor notice of proposal to AIW

G Standard Form G CVL G3 Sponsor notice of proposal to AIW

H Standard Form H CVL AIW preliminary response to G3 notice

I Standard Form I CVL G4 Network Change acceptance response from operators

J Standard Form J CVL G4 Network Change rejection response from operators

K Standard Form K CVL Non Access Party response to G3 Network Change

L Standard Form L CVL G4 AIW acceptance response to Sponsor

M Standard Form M CVL G4 AIW rejection response to Sponsor

N Standard Form N CVL G5 Notice of Intended Scope

O Standard Form O CVL operator or consultee acceptance to G5 Notice of Intended Scope

P Standard Form P CVL operator or consultee rejection of G5 Notice of Intended Scope

Q Standard Form Q CVL G9 Competent Authority Network Change notice

R Standard Form R CVL Response to G9 Competent Authority Network Change

S Standard Form S CVL AIW entitlement to implement a Network Change

T Standard Form T CVL operator rejection of AIW entitlement to implement a NC

U Standard Form U CVL Sponsor entitlement to make AIW implement a G3 NC

V Standard Form V CVL operator rejection of Sponsor entitlement G3 NC

W Standard Form W CVL AIW rejection of Sponsor entitlement G3 NC

X Standard Form X CVL Establishment of Network Change advice

CVL Vehicle Change Template Letters

CVL Standard Forms to be used for Vehicle Change

Standard Form A - Sponsor Initiation of Vehicle Change procedure

Standard Form B - Sponsor vehicle change proposal - Notification to consultees

Standard Form C - CVL IM Vehicle Change notice to consultees

Standard Form D - CVL IM preliminary response proposed vehicle change

Standard Form E - TOC acceptance response to proposed Vehicle Change

Standard Form F - TOC Rejection response to proposed Vehicle Change

Standard Form G - Non Access Party response to Vehicle Change

Standard Form H - CVL IM Formal Variation Notice

Standard Form I - CVL IM F3 rejection response  to sponsoring TOC

Standard Form J - CVL IM F3 acceptance response to Sponsor

Standard Form K - CVL IM F4 Competent Authority Vehicle Change notice

Standard Form L - TOC F4 Response to Competent Authority Vehicle Change

Standard Form M - CVL IM Establishment of Vehicle Change advice Standard Form

Established Network Changes

CVL Establishment of Network Change NC6

CVL HIRWAUN Establishment of Network Change letter

CVL AIW Establishment of Network Change Rhymney LMD 17-05-2021

CVL Establishment of Network Changes NC5

CVL Network Change Establishment Notice - CVLNCCP01-G1-01: Driver Training and Migration of Operations Control from WROC to CVLICC

CVL Network Change Establishment Notice - CVLNCCP01-G1-02: TAM Commissioning

CVL Network Change Establishment Notice - CVLNCCP01-G1-03: Overhead Line Equipment (“OLE”) Commissioning

CVL Network Change Establishment Notice – CVLNCCP01-G1-04: The Electrical Control Room (“ECR”) within the Core Valley Lines Integrated Control Centre (“CVLICC”) as well as the Temporary Operational Arrangements for Access to and from Taff’s Well Depot

Establishment of CVL Network Change Notice CVLNCCP01-G1-02-V1 - Variation 1 to the Establishment of the TAM Commissioning

Establishment of CVL Network Change Notice CVLNC009 - Removal of Class 142 and 143 rolling stock vehicles from Table D1A of the Western Sectional Appendix (CVL Only)

Establishment Notice CVL Network Change CVLNC010 - Addition of Class 231 rolling stock vehicles to Table D1A of the Western Sectional Appendix

CVLNCCP01-G1-05 Commissioning and Overhead Line Electrification System from Pontypridd to Treherbert

CVLNCCP01-G1-05-V1 Commissioning and Overhead Line Electrification System from Pontypridd to Treherbert

Establishment of CVL Network Change Notice CVLNC012 Cardiff Queen Street 9454 points

CVLNC013 STNC Hirwaun Branch

CVLNCCP01-G1-05-V2 Pontypridd Blockade

CVL Network Change Establishment Notice CVLNCCP02-G1-01 Cardiff Bay Station platform changes and OLE Commissioning Heath Junction to Caerphilly Bay Platform and Coryton

CVL Network Change Establishment Notice CVLNC015 - Taffs Well Depot Access

Establishment Notice CVL G1 Network Change CVLNC016 - Hirwaun STNC May 2025