1）每个街口有左拐、右拐、直行及行人四种指示灯。每个灯有红、绿两种颜色。自行车与汽车共用左拐、右拐和直行灯。 -1) are left in each corner, turn right, go straight and four pedestrian lights. Each lamp has red, green and white. Bicycle and car sharing left, right and straight lights.