Details of London Underground services are provided in real-time on the TfL website; you can get full details by clicking on individual lines: http://www.tfl.gov.uk/tfl/livetravelnews/realtime/tube/default.html

Information on rail services out of London are also available by following the links here:

http://www.tfl.gov.uk/tfl/livetravelnews/realtime/rail/default.html

London Buses are operating limited services on the following routes only:

Routes 21 36 58 60 79 83 92 94 115 126 136 160 162 171 208 212 233 286 308 370 427 428 488 492 607 RV1