Even nationwide GPS speed detection isn’t flawless. What if an accident happens or for road works, then a temporary speed reduction can be applied. The autonomous driving system must be able to detect those situations and handle them gracefully. But also coming out of that temporary speed restricted zone. What if the car doesn’t detect the end of the zone? Then the autonomous vehicle can drive dangerously slow until the next sign.
Blackmist@feddit.uk 2 weeks ago
You could certainly have both systems in place, with it always picking the lowest.
But you do want to avoid daft things, like seeing a parked lorry with “I’m speed to limited to 50” written on it, with the 50 in a red circle, and the car goes “50? Brilliant!” and zooms off past a school.