That map is so cool, as I can see the small village I used to spend my summers in(at my grandparents house), Tuckahoe.
I did not even think people outside of that village, knew it to put it on a map
Having spent my summers there, I agree the traffic from Philly to the shore is bad. And given the development of the shore towns, rail could work, as that is how people used to get to the shore.
But the question is, will people ride it now, or will they still want their cars.