It is a gimmick, but if you're not a car person, your mental model of the place you live in is probably closer to a topological transit map, since you largely g

It is a gimmick, but if you're not a car person, your mental model of the place you live in is probably closer to a topological transit map, since you largely get around by hopping between nodes. It's easier to connect with data displayed that way. And it's also interesting to see what the areas are like near the nodes you pass by every day on your commute but don't get off at.