Comment by Animats
10 hours ago
If the onboard software has detected an unusual situation it doesn't understand, moving may be a bad idea. Possible problems requiring a management decision include flooding, fires, earthquakes, riots, street parties, power outages, building collapses... Handling all that onboard is tough. For different situations, a nearby "safe place" to stop varies. The control center doesn't do remote driving, says Waymo. They provide hints, probably along the lines of "back out, turn around, and get out of this area", or "clear the intersection, then stop and unload your passenger".
Waymo didn't give much info. For example, is loss of contact with the control center a stop condition? After some number of seconds, probably. A car contacting the control center for assistance and not getting an answer is probably a stop condition. Apparently here they overloaded the control center. That's an indication that this really is automated. There's not one person per car back at HQ; probably far fewer than that. That's good for scaling.
> For example, is loss of contact with the control center a stop condition?
Almost certainly no - you don’t want the vehicle to enter a tunnel, then stop half way through due to a lack of cell signal.
Rather, areas where signal dropouts are common would be made into no-go areas for route planning purposes.
relying on essentially remote dispatch to resolve these errors states is a disaster