The official name of these people is "Cloud Driver Safety Officers", which is simply AI veterans. They use the high-bandwidth, low-latency 5G network to observe the 360° situation around the car from the screen group, and use the steering wheel, gear lever, pedals, etc. to control the driving of the unmanned vehicle. Anyway, if any AI is stuck, the AI veteran will take over immediately and watch several cars by himself.
The picture below is the backstage scene of Carrot Run, which is very shocking and very cyberpunk. This is the real version of Ready Player One😂