Scope

The functions and responsibilities of PRM TSI/NTSN MG are to work with RSSB to make recommendations to INS SC with regards to: 

  • proposals to change NTSNs and TSIs, including the implications of NTSN and TSI changes on national technical rules.
  • comments on NTSNs and TSIs to be channelled to the GB sector representative to influence TSI development and RSSB as the organisation managing NTSN changes.
  • whether to align or diverge NTSN requirements from TSI requirements, aligning with relevant strategies approved by the Infrastructure Standards Committee (INS SC), wider sector strategies and government policy.
  • the need to develop GB-specific cases in the NTSN and associated national technical rules, and make recommendations to RST SC.
    NTSN changes drafted by RSSB and associated analysis developed by RSSB.
  • interim or permanent solutions to address relevant NTSN challenges and issues and how to codify them in the NTSN issues log. 

Where necessary and required, PRM TSI/NTSN MG consults with other TSI/NTSN mirror groups, predominantly the locomotives and passenger rolling stock (LOC&PAS) TSI/NTSN MG, and other industry groups on related interface matters, to ensure consistency between subsystems. 

Membership

The PRM TSI/NTSN MG may consist of representation from: 

  • passenger train operators
  • non-passenger train operators
  • infrastructure managers and owners
  • rolling stock owners and leasing companies
  • infrastructure contractors
  • suppliers and rolling stock manufacturers
  • user groups
  • DfT (as observers)
  • Office of Rail and Road (as observers) 
Chair: Anup Chalisey, RSSB
RSSB main representative: Joe Bull