This was actually what the former Communist authorities from my Eastern European country did back in the late '70s- the'80s, when public transport in the capital city was like this: http://www.ap-arte.ro/fckupload/82_1632%20april%20Tram_super... and http://jurnalul.ro/thumbs/big/2009/06/05/trasee-interminabil... .
