Check it out.
You're saying the best safety metric is to not crash airplanes.
Yes, it is the most quantifiable way to measure it currently.
So I say why don't you just make all the rules say, "Don't crash airplanes." That should fix the problem of crashing airplanes right?
Now you're just being stupid.
I say crashing airplanes is a process, so by cutting the crash off BEFORE it gets to the point of a crash increases safety.
OK outside of all the six sigma references, of course it is. The problem with that is there is just no way to correctly measure that.
When an entity (either a person, government, whomever) measures "safety", they do it based upon accidents and/or fatalities.
Here is a study by Boeing showing how "safe" flying is as a mode of transportation.
"Comparing the risk
In the United States, it's
22 times safer flying in a commercial jet than traveling by car, according to a 1993-95 study by the U.S. National Safety Council. The study compares accident fatalities per million passenger-miles traveled. The number of U.S. highway deaths in a typical six-month period -- about 21,000 -- roughly equals
all commercial jet fatalities worldwide since the dawn of jet aviation four decades ago. In fact, fewer people have died in commercial airplane accidents in America
over the past 60 years than are killed in U.S. auto accidents in a typical three-month period.
U.S. traffic accident fatalities in 2000 -- 41,800
Commercial airplane fatalities in 2000 -- 878"
Point being, measuring this way is the yardstick that safe vs. unsafe is measured. I'm sure there are better ways of doing it, yet they really aren't feasible on a large scale basis.