National Rail should not be confused with Network Rail. National Rail is a title used to promote passenger railway services, and providing some harmonisation for passengers (e.g. tickets to all London Terminals), while Network Rail is the organisation owning and managing most of the fixed assets (tracks, signals etc.) of the railway network.
The two networks are generally coincident where passenger services are run. Most major Network Rail lines carry freight traffic and some lines are freight only. There are some scheduled passenger services on their own privately managed, non-Network Rail lines, for example Heathrow Express which also partly runs on Network Rail track and the London Underground also overlaps with Network Rail in places.
Twenty eight privately owned train operating companies, each franchised for a defined term by government, operate passenger trains on the main rail network in Great Britain. The Rail Delivery Group is the trade association representing the TOCs and provides core services, including the provision of the National Rail Enquiries service. It also runs Rail Settlement Plan, which allocates ticket revenue to the various TOCs, and Rail Staff Travel, which manages travel facilities for railway staff. It does not compile the national timetable, which is the joint responsibility of the Office of Rail Regulation (allocation of paths) and Network Rail (timetable production and publication).
Since the privatisation of British Rail there is no longer a single approach to design on railways in Great Britain. The look and feel of signage, liveries and marketing material is largely the preserve of the individual TOCs.
However, National Rail continues to use BR's famous double-arrow symbol, designed by Gerald Burney of the Design Research Unit. It has been incorporated in the National Rail logotype and is displayed on tickets, the National Rail website and other publicity. The trademark rights to the double arrow symbol remain state-owned, being vested in the Secretary of State for Transport.