圆环，道路的圆形交叉路口；

1. 圆环：traffic away 通过交易断送 | traffic circle 圆环 | traffic control 交通管制

2. 交通转盘：traffic census | 交通调查 \r\n | traffic circle | 交通转盘 \r\n | traffic combined condition collision diagram | 交通状况冲撞总图 \r\n

3. 环形交叉路口：此路不通 || No through road | 环形交叉路口||Traffic Circle | 向左急弯路标志||Sharp Left Turn

1. a road junction at which traffic streams circularly around a central island

    e.g. the accident blocked all traffic at the rotary

    Synonym: circlerotaryroundabout