Please take a look at this web address, where you can access a copy of the Toronto City Summit Alliances July report on different ways of funding transit - and the need for new investment. It is a fundamentally business group and much of its argumentation reflects that. On the other hand, it does give us some ideas and arguments.
Herman
http://www.torontoalliance.ca/imagelibrary/AllianceReliableFundingPaper.pdf