Uber has published a Voluntary Safety Self-Assessment report in a bid to convince authorities to give it the go-ahead to test its self-driving vehicles on public roads again. The ride-hailing firm suspended all self-driving trials in March after a fatal crash in Tempe, Arizona killed a pedestrian. According to the National Transportation Safety Board, Uber's software detected the pedestrian six seconds before impact, but it didn't activate emergency braking until 1.3 seconds before the collision. The human backup driver was unfortunately distracted and streaming a show on their phone. Uber has since applied for permission to resume testing on public roads, and it's currently under review by the Department of Transportation.