Sounds like the main problems, besides whatever was wrong with the self-driving software, were that area of the freeway being unacceptably unsafe...
> which the NTSB determined had been damaged and repaired more frequently than any other left-exit in Caltrans' District 4, which includes all of the Bay Area.
...and CHP not doing their job:
> The California Highway Patrol responded to the March 12 crash but did not notify Caltrans of the damage as required, the NTSB said.
> which the NTSB determined had been damaged and repaired more frequently than any other left-exit in Caltrans' District 4, which includes all of the Bay Area.
...and CHP not doing their job:
> The California Highway Patrol responded to the March 12 crash but did not notify Caltrans of the damage as required, the NTSB said.