I live in rural ireland, i think HEALY RAES point of view is worth considering,there isa degree of truth in what he says, but what i think is a better suggestion is to re introduce the old limit for rural areas in ireland, and keep it as it is in cities.
it is not just excess alcohol that kills it is also excess driving speed.
i have witnessed this a fair bit, one example was a woman who was absolutely sober, who hit my house, because of her driving speed.
there is also degrees of difference between someone who is drunk and completely incapable, and someone who has had two pints over two hours, or three pints over three hours,or one pint over the whole evening, depending of course how strong the beer is.
an average pint of beer 4 per cent on an average person generally takes an hour to work out of the system,
i would suggest if anyone has been drinking alcoholic beer, for example, two pints over 2 hours, that they then have a drink of water and leave it half an hour before they get in to their car.
    erdinger now produce a non alcoholic beer, which tastes pleasant, and this is what i have been doing just lately.