National Academies' Drunk Driving Study Is A Mixed Bag

The latest NHTSA-commissioned study done by the National Academies of Sciences, Engineering, and Medicine has just been released.  The 489-page report came up with the following recommendations based on a review of the literature:

• Lower the BAC limit for DUI to 0.05 (currently 0.08 in all 50 states* and DC)
• Increase alcohol taxes
• Reduce the hours and days during which alcohol can be sold
• Crack down on sales of alcohol to people under 21 and people who are already intoxicated
• Put limits on alcohol marketing and fund anti-alcohol campaigns similar to what is currently done with smoking.

As we can see, this list of recommendations is a mixed bag overall.  Let's go through each of these ideas, one by one:

Lower the BAC limit to 0.05.  Twenty-One debunked supports this one, albeit with the reservation that driving with a BAC of 0.050-0.079 ought to be a traffic violation rather than a criminal offense, with criminal penalties reserved for those above 0.08.  The models used in the Canadian provinces of British Columbia and Alberta, or even the one currently used in New York, should be used in all states and territories.  And all penalties for DUI should be steeply graduated based on BAC in general.

Increase alcohol taxes.  Twenty-One Debunked fully supports this one, and it is in fact a key component of our proposal.  And it is probably the single best way to reduce alcohol-related harms, including drunk driving casualties.  We recommend raising and equalizing the federal tax on all alcoholic beverages to the 1991 inflation-adjusted level for distilled spirits, namely $24 per proof-gallon.

Reduce the hours and days during which alcohol can be sold.  Twenty-One Debunked does not take an official position on this one, but would be fine with a modest reduction depending on the details (days?).  It would seem that there is an optimum time for "last call" which is overall better than anything much earlier or later.   We need more information to make a sound judgment about this recommendation.

Crack down on alcohol sales to people under 21.   Well, you should know by now how we stand on that one.  In a word, NO.  Twenty-One Debunked believes in lowering the drinking age to 18, full stop.  That said, we would be fine with cracking down on vendors who sell to people under 18 all the same.

Crack down on sales to people who are already (noticeably) intoxicated.  Twenty-One Debunked would be okay with that, as long it is not done in an ageist or overly heavy-handed fashion.

Put limits on alcohol marketing and fund anti-alcohol campaigns similar to smoking.  Twenty-One Debunked supports this one, albeit with some reservations.  Clearly, alcohol and tobacco are quite different from one another in terms of both harm and addictiveness, and that undeniable fact should figure into any such campaigns.  Alcohol is not all bad per se, unlike tobacco.  As a wise man once said, smoking is not like drinking, it is more like being an alcoholic.

Also, some ideas were noticeably absent or at best downplayed from the list of recommendations.  These include:

• Tougher enforcement against DUI
• Tougher (and graduated) penalties for DUI
• Ignition interlock devices
• South Dakota's 24/7 Sobriety Program 
• Safe rider programs
• Alcohol server training
• Reducing outlet density
• Social norms marketing
• Innovative alcohol education methods
• Improved treatment for alcohol use disorders
• Better public transportation 
• Better traffic safety measures in general
• Increasing the gas tax

All of which we support, and are either proven or at least promising.  And of course we support lowering the drinking age to 18.  Yet they supported tougher enforcement of the 21 drinking age.  Why, given how it has been so thoroughly debunked by Miron and Tetelbaum (2009) and several other studies?  Well, no one wants to admit that their crown jewel is somehow tainted--and NHTSA et al. clearly considers the 21 drinking age to be their crown jewel of sorts.

But back to the controversial 0.05 limit proposal, as we have noted above, it should be administrative rather than criminal.  Even for BACs above 0.08 it should also carry such administrative sanctions in addition to (and separate from) any criminal penalies.  And the Canadian experience with such has shown that swift and certain (but modest) punishment works wonders, much more so than lowering the boom rarely and haphazardly.  As for the fear that bars and restaurants will lose business as a result?  Well, let us play the world's smallest violin for them.  They may want to think ahead and invest in "safe rider" programs then.  Problem solved.

So what are we waiting for?

* The criminal BAC limit is 0.08 in all states except Utah, whose new 0.05 law goes into effect on December 30, 2018.  Some states, such as New York, actually already set the limit at 0.05 for a lesser offense that is just a traffic violation and not a criminal offense, albeit with license suspension.

Why Are Traffic Deaths On The Rise?

After decades of a massive secular decline in traffic deaths, reaching an all-time record low in 2014 per VMT as well as per capita, such deaths have been creeping up again since then.  2015 and 2016 both saw national increases in fatalities, and 2017 looks likely to continue that grim trend (and indeed has in several states).  In fact, it is the largest two-year jump in deaths in half a century.  So why has progress stalled and begun to reverse in recent years?

The list of most likely factors includes the following:

• Lower gas prices
• An improving economy since the Great Recession
• An increase in distracted driving (and walking), primarly from smartphones
• Higher speed limits than in the past 
• Infrastructure in disrepair from neglect
• Slacking on traffic safety improvements in general since the early 1990s

All of these things are true, and all of them are known to be correlated with traffic casualties.  Other factors are involved as well, to be sure, but these are the big ones.  The first three are the proximal causes, while the last three are the more distal ones.

Of course, drunk driving and not wearing seatbelts remain rather persistent contributors to the number of these deaths, but such behaviors remain far lower than they were decades ago.  Nevertheless, they remain at dangerous levels, and it is apparently a bit too early to feel safe in that regard.  And with real alcohol prices at record lows today and alcohol consumption on the rise for the past two decades, there is definitely a cause for concern in that regard.

What about drugged driving, then?  Is it really on the rise, like some have claimed?  Perhaps, but it may simply be that we are getting better at detecting it rather than an actual increase.  Or perhaps it is a bit of both.  The opioid epidemic certainly doesn't make the roads any safer.  And contrary to the anti-legalization folks, there does not seem to be any firm link between cannabis legalization and traffic fatalities.  In fact, some studies have found decreases in highway deaths following cannabis liberalization, due to an apparent substitution with alcohol.

One thing is for sure.  Whether this spike in traffic casualties is a short-term blip or the start of a longer-term trend (which will only be known in hindsight), it should be a major wake-up call that we clearly cannot afford to be complacent about it any longer.