Comment Observational study can't claim causality... (Score 1, Offtopic) 330
For starters, that's an observational study, not a double blind one. You can't claim causality. It's important data, but it's not causality.
Second, you can't look at only one side of the equation - you can't pick and choose which variables you are going to use and which ones you are going to ignore! Are those bars saving more lives? How many people were dying inside vehicles vs outside of the vehicles back in 2009? Maybe the regulators and the industry optimized for the right thing and saves tens of thousands of lives as a net result. Everything is tradeoff. If you don't understand how tradeoffs work, then don't go making studies like this? Maybe...
"Oh, the bar that saves lives when accidents happen increased blind spot sizes, ohhhhh", so they started adding the blind spot indicators at the same time to make up for it - did the study look at the effect of that?
I hate this. Folks do a completely flawed study and then boast whatever conclusion they already wanted in the first place.