Here's another great paper on long range / short range steering: <a href="http://ijssst.info/Vol-05/No-1&2/TOMLINSON.pdf" rel="nofollow">http://ijssst.info/Vol-05/No-1&2/TOMLINSON.pdf</a>.<p>The paper has excellent illustrations and it really helped me gain intuition for how pathfinding/steering algorithms can come together as a whole.