Matt Purslow for IGN:

This new system is designed to create “a realistic virtual world that is not limited by hardware and software limitations,” which is a response to conventional systems that are unable to produce the kind of NPC behaviours players expect within the limits of current processor and memory bandwidth. This is specifically in relation to traffic behaviour; the patent details boats, cars, and drivers throughout. The system outlined would result in a more realistic and immersive simulation of traffic.

While not specific to NPC vehicle navigation, the AI has been a consistent issue in almost all of the games I’ve played recently. It’s encouraging to see studios working on this aspect of their games and I’m hopeful we’ll see more making similar significant investments to improve the immersion of future releases.