Varkk:
How about another one of improving public transport, trains and buses etc. Less traffic on the road, less drivers less chance for individual accidents.
Those items would be great for a number of reasons. Less traffic is not the answer. You might find less accidents but per capita increases. Less cars = more speed = less need to watch out. Fix the problem, don't artificially reduce a metric to make it look better, as the exact same problem and its effect, still exists