Re:London tube map made from a working circuit board
by lozf on Wednesday June 24, 2020 @11:38AM
(#23629183)
I expect TfL's "Tube departure boards, line status and station status"[0] feed would suffice. It's updated every 30 seconds. Plenty more data available too.
https://www.opentraintimes.com/maps/signalling/tlk_core