I think that enforcing traffic law is one of the best ways to use police to keep the public safe. However, I suspect that having 5 cops at one intersection is a

I think that enforcing traffic law is one of the best ways to use police to keep the public safe. However, I suspect that having 5 cops at one intersection is a mis-allocation of resources. It would make that intersection safer, but at a pretty high salary cost, and even if the salary was available, it's likely at least some of the cops would be more useful at other intersections.