In her letter to Montgomery, Polk stated her workplace concluded that video of the crash possible did not precisely depict the collision and really helpful that Tempe police search extra proof.
Elaine Herzberg, 49, was pushing a bicycle throughout a road within the darkness when the crash occurred.
The motive force, Rafaela Vasquez, advised investigators that she did not use her cellphone earlier than the crash. However authorities had beforehand stated information confirmed Vasquez was streaming the tv present The Voice on her cellphone and was wanting downward within the moments earlier than the crash. Investigators had concluded the crash may have been prevented had Vasquez not been distracted.
Makes an attempt to contact Vasquez by way of e-mail and cellphone numbers on Tuesday weren’t profitable.
Sarah Abboud, a spokeswoman for San Francisco-based Uber, stated the corporate was declining touch upon Polk’s letter.
Vasquez advised police Herzberg “got here out of nowhere” and that she did not see her previous to the collision. However officers had calculated that had Vasquez been paying consideration, she may have reacted earlier than influence and stopped the SUV earlier than hitting Herzberg.
The Nationwide Transportation Security Board launched a preliminary report in Might saying the autonomous driving system on Uber’s Volvo XC-90 SUV noticed Herzberg earlier than hitting her, however did not cease as a result of the system used to robotically apply brakes in doubtlessly harmful conditions had been disabled “to cut back the potential for erratic automobile behaviour”.
As a substitute of the system, Uber depends on the human backup driver to intervene.
The loss of life raised questions in regards to the security of computer-controlled vehicles being constructed by Uber and dozens of different firms, together with Google spin-off Waymo.
Uber pulled its self-driving vehicles out of Arizona the day earlier than the NTSB report was launched, eliminating the roles of about 300 individuals who served as backup drivers and carried out different jobs linked to the automobiles.
The corporate had suspended testing of its self-driving automobiles in Arizona, Pittsburgh, San Francisco and Toronto whereas regulators investigated the reason for the crash. Arizona Governor Doug Ducey prohibited Uber from persevering with its exams of self-driving vehicles after Herzberg was killed.
The case was given to Polk’s workplace after the prosecutor’s workplace in metro Phoenix handed on the case, citing a possible battle of curiosity. The company in Phoenix had beforehand participated in a public-safety marketing campaign with Uber.