Ah yes, the good old "paralysis through analysis" option. Do nothing but continue to talk about doing something, sometime, maybe. Set up more tribunals, commission more expert reports, establish yet more committees of inquiry and research groups - give the appearance of doing something while people are dying and getting injured.
The research is done, the evidence is in and the congruent policy changes are implemented across the EU - apart from Ireland, Malta and the UK, 89% of the member states agree.
Why not change one key factor that has a significant effect on road safety and monitor for statistical variation? It might save lives and injuries and it is highly unlikely to cause any harm.
Alternatively, expand on Mattie McGrath's ingenious suggestion, which I'm sure is backed up by vast armies of researchers and libraries of papers. According to the article above, the bould Mattie believes that "... some people feel more relaxed behind the wheel after a drink... " and "... drink ... can make people who are jumpy on the road, or nervous, be more relaxed ...".
So by extrapolation, make drunk-driving Government policy and ensure all drivers including Pioneers, recovering alcoholics, teetotallers, 17-year old moped drivers and 16-year old farmers can only start their vehicles after consuming alcohol. Look out for the beneficial effects of implementing these insightful and perfectly-researched observations. It might be an idea to run this on a test basis initially though, somewhere like Craggy Island with Messers McGrath, Healy-Rae & Co as the crash-test dummies-in -chief.