Originally posted by: Corn
If a conservative started this thread would you have praised them?
Only if they would have rightly chastized Insurance Institute for Highway Safety for yet another bogus study that always comes to the same conclusion.
Notice this "study" doesn't encompass the entire country.......wonder why that is.....
Did this study compare miles driven/fatality before and after the 75mph increase, or was it simply "more have died since....."?
The New Zealand researchers studied death rates on rural intestates where the speed limits had been increased from 55 mph to 75 mph. Of those, the study finds a 38 percent increase, or about 780 more deaths.
I think the answer to my question is answered right there. They've come to the conclusion that it was simply the increase in the speed limit that has contributed to the increase in death, no mention of the increase in miles driven before and after. Imagine that, I would have thought that a "broad" study would footnote that interesting fact somewhere.
Agreed. The anti-speed crowd has a long history of fudging their numbers to dramatize their "speed kills" campaign. Yes, all things being equal, as speed limits increase, so will fatality rates. However, the IIHS has consistently exaggerated the relationship.
Counting highway fatalities by itself isn't enough. As Corn hints, you must also consider the number of miles driven. If there are more people driving more miles, there will be more accidents. The standard metric for this is fatalities per 100 million vehicle miles travelled (VMT). This normalizes the fatality rate.
The 2002 fatality rate per 100 million VMT was 1.51 according to the U.S. Dept. of Transportation. In this article, the IIHS trumpets the great drop in fatalities in 1974, when the U.S. adopted the 55 mph speed limit. They do not mention that the 1974 fatality rate was 3.59 deaths/100M VMT,
over twice as high as 2002! They also do not mention that the average fatality rate has dropped steadily for decades, regardless of whether speed limits went up or down. The 2002 fatality rate of 1.51 is about one-fourth the 1957 rate of 5.98.
Why the continual drop? Because roads and cars are both safer. More and more vehicle miles are on safer, multi-lane divided highways instead of old two-lanes. Seat belt use saves thousands of lives per year (and air bags save the lives of morons who won't use their seat belts). Cars are engineered to survive collisions. Tires are vastly better. Drunk driving is less common. I know many people here love to criticize all government regulations, but all in all, our auto safety mandates are saving a lot of lives.
So, did the IIHS lie when they said fatalities dropped in 1974? Technically no, there were 9,000 fewer deaths in '74. What the IIHS doesn't mention is the unprecedented drop in travel in 1974. Remember the energy crisis? Remember skyrocketing gas prices and gas lines? People stayed home in 1974. Total VMT dropped by over 33 billion miles. Gas was too expensive, and people were concerned they'd get stranded.
There are other causes for concern, however. According to the DOT, 2002 fatalities were as high as they were thanks to an increase in SUV rollover deaths (up by almost 500) and alcohol-related deaths (up by just over 500). On the bright side, there was a significant drop in deaths for children seven and under.