Haha yep. This is more an exercise of thinking what's possible although I think some networks do have access in the NYC subway system. In any case, you can sca

Haha yep. This is more an exercise of thinking what's possible although I think some networks do have access in the NYC subway system. In any case, you can scale it to non-subway and see what you get. I wish I had the time to pursue this but I'm busy with a couple of other things so this just gets added on to my ever increasing to do list.