Waymo studied this back when it was a Google moonshot, and concluded that going full automation is safer than human supervision. A driving system that mostly works lulls the driver into complacency.
Besides automation failure, driver complacency was a big component[1] of the fatal accident that led to the shuttering of Ubers self-driving efforts - the safety driver was looking at her phone for minutes in the lead up. It is also the reason why driver attention is monitored in L2
Waymo studied this back when it was a Google moonshot, and concluded that going full automation is safer than human supervision. A driving system that mostly works lulls the driver into complacency.
Besides automation failure, driver complacency was a big component[1] of the fatal accident that led to the shuttering of Ubers self-driving efforts - the safety driver was looking at her phone for minutes in the lead up. It is also the reason why driver attention is monitored in L2