This works well if you only care about the class of destination. In Citybound, people have unique, persistent homes, jobs and favourite suppliers of goods, so y

This works well if you only care about the class of destination. In Citybound, people have unique, persistent homes, jobs and favourite suppliers of goods, so you always need point-to-point routing. I'm using a kind of internet-like dynamic routing table embedded in the road network to distribute the problem.