It's going to work fine in confined spaces, i.e. loading/unloading cargo, transporting goods inside industrial parks, even pre-defined drone paths for item delivery with collision avoidance etc. And the more self-driving cars there are, the more could they be globally orchestrated with phasing out human factors. Cars are now full of sensors and increasingly communicate with each other. Imagine they would notify each other about their trajectories, state, etc. when they get closer/pass by.