I happen to live on one of them, fortunately (I suppose), the latter one. Besides being located right behind the church (one would think, a surer way to heaven), it's also on a pretty steep incline:
Whereas Hell Street, as you might have guessed, goes down:
So there you go, heaven is up, hell is down. Pretty simple, no?
My own notion of heaven this morning was riding my bike to the beach for a swim. Turquoise water, soft pebbles, yellow rocks. Kelp. Gulls. And the cove to myself, all before lunch.