The vehicle was in autonomous mode when the accident happened, making it the first death in the United States to result from a self-driving auto.
Arizona has ordered Uber to suspend autonomous vehicle testing across the state, as rivals Waymo and Intel queue up to say how their driverless technology would have better handled the incident which saw an Uber auto kill a pedestrian earlier this month.
In a statement a spokesperson for Uber said: "The video is disturbing and heartbreaking to watch, and our thoughts continue to be with Elaine's loved ones".
Ducey told the company CEO Dara Khosrowshahi that video footage of the crash raised concerns about the company's ability to safely test its technology in Arizona. "The incident that took place on March 18 is an unquestionable failure to comply with this expectation".
Video of a deadly self-driving vehicle crash in suburban Phoenix shows a pedestrian walking from a darkened area onto a street just moments before an Uber SUV strikes her.
Elaine Herzberg, 49, was the first fatality involving a self-driving vehicle.
A video released by Tempe police showed the Uber auto moving at a constant speed with no attempt to slow down or swerve in the moments before the collision. "I firmly believe the time to have a meaningful discussion on a safety validation framework for fully autonomous vehicles is now", Shashua said. Unlike California, where Uber had been testing since spring of 2017, Arizona state officials had taken a hands-off approach to autonomous vehicles and did not require companies to disclose how their cars were performing.
The exact cause of the Arizona collision is still being investigated, but with road safety being one of the primary benefits touted for self-driving cars, both Uber and regulatory bodies will be urgently searching for answers, and seeing what lessons can be learned from the tragedy.
If Uber resumes its self-driving vehicle testing, the governor's decision means the company will still be prevented from doing so in Arizona, said Ducey's spokesman Daniel Scarpinato.
Research has found that humans monitoring an automated system can become bored and disengaged, making semi-autonomous testing particularly risky.
While that redefinition won't help Uber's reputation or stock price in the short term, it could end up forcing the company to become more serious about safety, which could save the company in the long run. An investigation into the accident by Uber and law enforcement is ongoing.
He added that self-driving auto suppliers will need to build more redundancies into their technology to avoid fatal accidents. He pointed to Responsibility Sensitivity Safety, a recent initiative by Intel to use mathematical models to ensure that self-driving cars operate safely, as an example of how his company is trying to earn the public's trust.