东西南北两向交通灯，分有红黄绿三色，东西为主干道59秒倒计时，南北为辅道34秒倒计时，绿灯变黄灯时黄灯闪3秒跳转为红灯-Two traffic lights to the west, south, divided into red green and yellow three-color, 59 seconds countdown thing for the main road, north-south secondary road 34 seconds countdown, when the