Hi everyone, just come across this website link via one of my facebook groups . http://bbcsfx.acropolis.org.uk The link above is to 16000 sound files I carried out a quick easy search using Trains as the keyword and had 295 wav files returned as the results . http://bbcsfx.acropolis.org.uk/?q=trains Admittedly a lot of foreign train sounds are included but there is plenty of british train sounds including station announcements for all. This will be useful to anyone wants new wav files and provided you are ok using a .wav editor you should get some good use of it. Another search I carried out was the original posters serach of London Underground. I suppose you can be as inventive as you like with searching to see all the sounds that you can obtain . http://bbcsfx.acropolis.org.uk/?q=london+underground if any one finds more useful searches , they could post in this topic. These 16,000 BBC Sound Effects are made available by the BBC in WAV format to download for use under the terms of the RemArc Licence. The Sound Effects are BBC copyright, but they may be used for personal, educational or research purposes, as detailed in the license. For commercial use, you can license sound effects. Access dataset metadata by visiting our dedicated LOD site. If you have any queries regarding usage, please contact jake.berger at bbc.co.uk