Regulatory Sign R137
Roundabout
The roundabout regulatory sign R137 imposes a mandatory requirement that drivers entering a roundabout shall turn to the left and shall travel round the roundabout in a clockwise direction, and it imposes a mandatory requirement that drivers entering a roundabout shall yield right-of-way to traffic approaching from the right, within the round-about, where such traffic is so close as to constitute a danger or potential danger.