It is laughable that you don't think the goal wasn't already zero. It has been zero the whole time.

Real life and ideals are different thing. You can't promise that accidents will never happen. But you can promise that accidents will be substantially reduced.

In the US, about 35k people die per year from motor vehicle related deaths. If you get it down to 10k, then that would be a major success. Of course, you will still be fine tuning until you could get below 1000 and as close to 0 as possible.