[tsimionescu]

Perhaps the best way to address this would be to look at property damage for car-car or cat-object collisions, and a separate stat for car-pedestrian accidents.

In collisions that don't involve pedestrians, the damage to the car/object is generally proportional to the chance that someone was badly injured or killed in those cases - the only thing you get by adding human life costs is to take into account the quality of the safety features of the cars being driven, which should be irrelevant for nay comparison with automated driving. In collisions that do involve pedestrians, this breaks down, since you can easily kill someone with almost 0 damage to the car.

So having these two stats per mile driven to compare would probably give you the best chance of a less biased comparison.