Self-Driving Uber In Fatal Accident Had 6 Seconds To React Before Crash

The NTSB report also noted the pedestrian tested positive for methamphetamine and marijuana. That information is of limited use ― the Uber should have identified and avoided her either way ― but it does potentially provide insight into why she didn't cross at the crosswalk 360 feet to the north, and why she was unaware of the vehicle until immediately before impact.