Is there any information available about how these cars take evasive action or attempt to reduce damage in the event of an imminent impact? The article's wordin

Is there any information available about how these cars take evasive action or attempt to reduce damage in the event of an imminent impact? The article's wording makes it sound like the car was at fault for the crash by re-entering the lane: > "But three seconds later, as the Google car reentered the center of the lane it struck the side of the bus" Presumably the car's software predicted the crash before it occurred but was unable to completely avoid it. I'd love to know what the programmed behavior is in these 'unavoidable' crash scenarios. edit: formatting