Re: Nanny can't fix it
"except seat belts and drink driving that is."
I didn't know that seat belts and drink driving were broken. Passing laws by itself does nothing. Education does far more and I would wager that the PSAs put on TV and the improved communication in schools has done far more to combat drink driving that simply passing a bunch of laws and putting up excuses to search your car for contraband on the roadway.
As for seat belts, there isn't much proof that laws actually do anything either other than generate revenue for the state. I know, it's about saving lives not raising money, so let's look at the data, shall we. The NHTSA has seat belt use data (PDF) for the 50 States, Wikipedia and the GHSA have data on seat belt laws and the Census Bureau have the data on traffic accident fatalities and fatalities by state (PDF).
Now the state with the lowest seat belt use, New Hampshire 68.9% in 2009 and 72.2% in 2010, also has neither a primary1 nor secondary seat belt law for adults and the state with the highest use, Hawaii 97.9 - 2009 and 97.6 - 2010, has a primary seat belt law. Naturally if this was about saving lives it should follow that NH with its low use rate would have a higher fatality rate than HI, except it doesn't. In fact for the last year shown on the Census data 2009, the fatality rate per 100 million road miles traveled is 22% higher in HI than NH.
Ok, the two states are a world away so let's look somewhere closer to the "worst" seat belt use like New York which also has a primary seat belt law. We find that the use rate was 88% in '09 and 89.8% in '10 so it is still considerably higher than NH. Oddly the traffic fatality rate for those two states is the same. How can that be? The climates and driving conditions are going to be very similar given the proximity so how can the seat belt use and laws be so different with the same result?
1. A primary seat belt law means that a driver can be stopped and ticketed only for non-use of a seat belt. A secondary seat belt law does not allow for stopping a driver solely for non-use of a seat belt but if stopped for another reason it becomes a second offense.