Last month, an Uber spokeswoman said the company was undergoing a "top-to-bottom safety review," and had brought on a former federal transportation official to help improve the company's safety culture. The company prohibits the use of any mobile device by safety drivers while the self-driving vehicles are on a public road, and drivers are told they can be fired for violating this rule.
Police said a review of video from inside the vehicle showed Vasquez was looking down during the trip, and her face "appears to react and show a smirk or laugh at various points during the times that she is looking down." The report found that Vasquez "was distracted and looking down" for close to seven of the nearly 22 minutes before the collision.
Tempe Police Detective Michael McCormick asked Hulu for help in the investigation, writing in a May 10 email to the company that "this is a very serious case where the charges of vehicle manslaughter may be charged, so correctly interpreting the information provided to us is crucial." Hulu turned over the records on May 31.
According to a report last month by the National Transportation Safety Board, which is also investigating the crash, Vasquez told federal investigators she had been monitoring the self-driving interface in the vehicle and that neither her personal nor business phones were in use until after the crash. That report showed Uber had disabled the emergency braking system in the Volvo, and Vasquez began braking less than a second after hitting Herzberg.
Herzberg, who was homeless, was walking her bicycle across the street, outside of a crosswalk on a four-lane road, the night of March 18 when she was struck by the front right side of the Volvo.
The police report faulted Herzberg for "unlawfully crossing the road at a location other than a marked crosswalk."
In addition to the report, police released on Thursday a slew of audio files of 911 calls made by Vasquez, who waited at the scene for police, and bystanders the night of the crash; photographs of Herzberg's damaged bicycle and the Uber vehicle; and videos from police officers' body cameras that capture the minutes after the crash, including harrowing screams in the background.
The crash dealt Uber a major setback in its efforts to develop self-driving vehicles, and the company shuttered its autonomous vehicle testing program in Arizona after the incident. It says it plans to begin testing elsewhere this summer.