Secondo Wikipedia (National Rail - enfasi aggiunta):

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 [train operating companies].

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.