SAN FRANCISCO, CA - AUGUST 26: The logo of the ride sharing service Uber is seen in front of its headquarters on August 26, 2016 in San Francisco, California. Uber's head of finance Gautam Gupta is reported to have told investors in a conference call that

UBER's San Francisco Office (Photo credit: Justin Sullivan/Getty Images)

NTSB Report On Uber Arizona Fatality

No Automatic Braking Deployed

KCBS Radio Morning News
May 24, 2018 - 7:01 am

SAN FRANCISCO (KCBS Radio) -- The National Transportaion Safety Board released  a preliminary report  Thursday morning on the collision between a self-driving Uber vehicle and a woman walking a bicycle in Tempe, Arizona.

That crash March 18 crash left the woman dead and forced Uber to shut down its self-driving car program in Arizona.

The NTSB  says the Volvo XC90 outfitted with Uber's autonomous-driving package was doing 43 miles an hour in a 45 mph zone when the incident occurred.

That Volvo is equipped with an anti-collision package known as City Safety, but the NTSB report says that function was disabled when the car was put into Uber's autonomous-driving mode.

The report says the car's radar and LIDAR systems spotted the pedestrian 6 seconds before impact, but it was only 1.3 seconds before impact that the system determined an emergency braking maneuver would be needed to avoid a collision.

The NTSB report says Uber's system requires the human operator to make such a braking maneuver. But in this case, the brakes weren't applied until after impact.

The report says the operator intervened less than a second before impact and didn't actually hit the brakes until after the car struck the woman.