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Welcome to the Infrastructure Manager pages for Amey Keolis Infrastructure / Seilwaith Amey Keolis Limited (AKIL).  

This site hosts key regulatory documentation and other information in respect of the role AKIL 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 AKIL.

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 AKIL 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, AKIL 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 AKIL 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:


Infrastructure Manager Documentation