That's going to depend on whether or not the federal government already plays a role in decision-making. Yes, there is a role in infrastructure funding, but it's my understanding that it's municipal-provincial-federal. In Toronto, for example, there is a body that is set up, much like a tripartite process, to look at issues of accessibility on the TTC as they do with the Metro in Montreal.
There's a long way to go, but there is a plan. In Toronto the decision-making authority rests with the Toronto Transit Commission, and they're ultimately accountable to the City of Toronto, which is then accountable to the Province of Ontario.
With regard to the Government of Canada, I would say there's some influence in terms of whether you can encourage that authority to buy x number of accessible Bombardier trains, for example, but I would say it ultimately depends on where that decision-making rests.