I’ve just been perusing boardgame related blogs (as you do) and found a couple of unofficial boards for TTR. Here are the relevant web addresses if anybody wants to have a look.
Belgian Rail Network
And this is for the Lyon Metro Network
I have printed out the Belgian one, it consists of 8 quality A4 jpegs for the board and 2 more for the destination cards. The Lyon one is 16 A4 PDFs for the board and another for the cards. I think as I have a week’s holiday coming up I will try to assemble the Belgian one. As TTR is one of the games I quite enjoy at the moment it should provide one or two diverting moments. Hopefully I can get the Billygames crowd to give it a trial run.