rumble strip
noun /ˈrʌmbl strɪp/
/ˈrʌmbl strɪp/
(informal)- a series of raised narrow areas across a road or along its edge that make a loud noise when a vehicle drives over them in order to warn the driver to go slower or that he or she is too close to the edge of the road
齿纹震动带（路面的隆起带，车辆经过时发出很大响声，提醒司机减速或不要太靠近路边）