Id imagine that you are attempting to move cars down every street in "waves". It almost might be more helpful to think of it as a series of trains on each stre

Id imagine that you are attempting to move cars down every street in "waves". It almost might be more helpful to think of it as a series of trains on each street. You likely can stagger the trains going north to south as well as the trains going east to west so that they miss each other. Its probably more complex than this but I'd imagine this is the basic concept.