"A country can change their car reliance."
Not to be bleak, but I doubt this will happen for a long time, if ever, in the US. It -may- happen regionally among a state or two, but good luck getting multiple states to coordinate on a project like this.
We can't even get things like voting centers done properly, so how in the world are we going to implement public transit? There is no incentive for politicians, and I bet the car industry would quickly give them incentives otherwise if they even attempted it.