While driving through rural France I came across an old French road rule Priorité à Droite meaning give way to vehicles from the right. I remember it when first coming to France years ago. I was driving along a main road and the car in front slammed on the brakes and let a bicycle come out from a side road. There was a solid white line across the main road which is the indicator. I also saw a crossroads with 4 stop lines at it and the same rule applies give way to vehicles from the right. It used to be the rule that people on the roundabouts had to give way to those coming on. It makes me realise why the French have invented the Angles Mort signs