Anybody heading to see our neigbours accross the channel, about-france.com/highway-code is a good web site for anyone unsure of the french traffic laws and signs. Things like you can commit a offence by using hands free telephone or bluetooth and that entering a village the speed limit starts with the signboard, no other display, and ends with the sign with a line through at the other end. The old chesnut ,give way to the traffic entering from the right is also explained. and much more
