Transit in Toronto has been a political hot potato for years, and that doesn't seem to be changing anytime soon. However, on Thursday, Metrolinx -- Ontario's transit agency -- revealed the next step in its overall transit plan known as "The Big Move," which includes a downtown relief subway line.

The next wave of transit plans also include a new extension of the Yonge subway line north to Richmond Hill. Light rail transit (LRT) in Mississauga, Brampton and Hamilton, and bus rapid transit (BRT) in Durham, Toronto, Peel and Halton. The next wave also includes changes to the GO Transit system, including line extensions, more two-way, all-day service, and electrification of both GO lines and the Union Pearson Express (formerly known as the Air Rail Link).

The big issue with "The Big Move," is the big bill.

"With our plan in place, it's now time for the big conversation about the best ways to pay for this $34 billion investment," said Metrolinx President and CEO Bruce McCuaig.

Over $16 billion from all three levels of government has already been allocated to a first wave of projects drawn from The Big Move, the largest financial commitment to transit expansion in Canadian history.