a series of raised strips across a road or along its edge, changing the noise a vehicle's tyres make on the surface and so warning drivers of speed restrictions or of the edge of the road
隆隆标志带,齿纹标志带(横穿公路或沿公路边缘而筑的一系列突起地带,使驶过该路面的汽车隆隆震颤,提醒司机减速行驶或提醒司机注意公路边缘)。