(23 Aug 2013, 8:54 am)AdamY wrote As noted in earlier posts, I'm very much in favour of a flat-fare system like the one Daniel has pointed to in Edinburgh or, to use another example London. I believe with an Oyster Card, the flat-fare is £1.40 in London with a daily cap of £4.40. For that you can travel on trams and buses comprising the entire area covered by TfL.
Touching on the London thing, they have zones there, but it looks on the whole - to be a fair system.
The zones radiate out of the 'City', so the further you travel, the more you pay.
Chances are that there will be the odd anomaly, but it is set up in a clear manner, which visitors and residents can understand.