[zepn]

> given the sudden presence of an obstruction in its path

It doesn't even need to have been in its path; it should have detected a pedestrian near the edge of the road, concluded that they might step into the road (it's a possibility), and decelerated. Before she even stepped into the road, the Uber was at fault.

[1812Overture]

The cars would creep along at 5mph every time there's a pedestrian on the sidewalk then, obstructing traffic and causing accidents.