Road safety: fix the driver vs fix the driving environment As ever, nothing is black and white and the answer is probably a bit of both camps.
However, while I'm not a fan of the absolutism of the strapline, the 'fix the road' side would be most successful. Seems to be a lot more straightforward to put a median barrier round a tricky corner than try to educate and retrain everyone of the thousands of drivers that may go round there at any point. We have a training and licensing regime now that strongly emphasizes the need to obey the speed limit, but people don't. Not sure why we think shouting it more loudly will help. Mass behaviour change can be achieved - it has been for reducing drink driving and seat belt use for example, but it's very hard, very uncertain, very slow and needs to consider much broader societal aspects than simply driving.