TfL still uses UTS in modified form and hugely reduced quantities, as detailed in Wikipedia. Decoding vital info centrally on the right hand side, machine series starting 01 upwards related to now-closed staffed Ticket Office windows; 10 onwards relate to self-service Fewfare machines; series 31 etc comprise a complex Multifare variant.
The "Hounslow Central 01 - UTS London Underground ticket - Middx TW3 - Piccadilly Line" is ideal for passengers seeking convenient access to the Piccadilly Line at Hounslow Central Station in West London, near the M4 motorway.
