如图右侧的标识指的是什么?What does the symbol on the right side of the picture refer to?

如图右侧的标识指的是什么?What does the symbol on the right side of the picture refer to?
前方有圆形路口a circular intersection ahead
前方车辆汇聚vehicles merging ahead
前方有环岛,遵循让行规则a roundabout ahead, follow the right-of-way rules

见到此标识表明前方是环岛,进入环岛前注意遵守让行规则,小心右侧来车。