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 Chiswick Park 30 - UTS London Underground ticket is ideal for travelers heading to Central London who prefer more convenient and affordable alternative to contactless travel cards.
