I think its pretty easy to park because most american cities are overparked, and as they convert surface lot to 5/1 they end up even more overparked because that usually comes with a subterranean garage and another 300 spaces that weren’t there before.

You’d be hard pressed to lay rail based transit so densely where everyone in the metro area has a 15 min walk to a station much less one going somewhere relevant for them. Simple bussing upgrades are much more realistic for us to see comprehensive transit in our lifetimes. Things like signal priority and a protected lane would go a long way for little cash and time. Too bad the bus is invisible to most people and politicians.