If you have it, you may as well use it. Not sure how useful it is when there is no other real traffic though. Archive: https://archive.today/H9QY5 From the post: >>A Chinese city that failed to attract people has become a sandbox for machines. Ordos, a coal-rich northern Chinese city that never took off after prices crashed in 2012, has attracted more than a dozen autonomous vehicle companies seeking risk-free testing environments. Its wide, well-paved roads and minimal traffic provide a real-world laboratory where self-driving vehicles can operate without endangering pedestrians or navigating complex traffic.