I know France isn't the only country in Europe to have priorité à droite. Hell, I remember coming across it in the States. What I object to is the very principle you mention - that if you don't see a sign otherwise then you have to stop to traffic on the right. This is what I think is dangerous. How many times have I driven or cycled past a junction that I didn't see until the last minute? Whether you're driving or cycling, if you have to give way, it should be clearly marked (around here, the new priorité à droite are marked - it's the older ones that aren't). I'll quote myself from the very first post in this thread: I then went on to post a picture of a street near here to illustrate the point. It's one of many like this - indeed it's not the worst. But now, thanks to the magic of Google, you can see for yourself. https://firstname.lastname@example.org...4!1seqj27XSQWIaWg1kRy2__Vg!2e0!7i13312!8i6656 Actually, the road is much more visible on Google Street View than it is in real life - probably because the camera is high on the roof of the car and that you're not moving fast. The photo I posted on the first page is much closer to what you actually see. If you go further up the road in the opposite direction, you see a newer junction which is properly marked, and also there is now a cross sign like the one above - but it's very easy to miss and it doesn't give you any clue as to where the junction is. In a car, and even on a bike, this junction is all but invisible until you cross it. That's my gripe: not so much the rule in itself, but the fact that it's all too easy to sail past a give way junction without noticing it and finding yourself in hospital (or worse) for the lack of a simple white line across the road.