Internal Metrics Show How Often Uber’s Self-Driving Cars Need Human Help

"Bryant Walker Smith, a University of South Carolina law professor and a member of the US Department of Transportation’s Advisory Committee on Automation in Transportation, said it’s difficult to draw conclusions about the progress of Uber’s self-driving car program based on just one week of disengagement metrics, adding that the figures suggest that safety drivers appear to intervene regularly out of caution — even in cases where an accident may not be imminent.