traffic calming
noun [ U ] UK uk/ˈtræf.ɪk ˌkɑː.mɪŋ/ us/ˈtræf.ɪk ˌkɑː.mɪŋ/
交通缓行措施，减缓机动车速措施（通常在沿线有住宅区的道路上设置凸面、小环岛或其他类似设施，迫使车辆减速）
the act of building raised areas, small roundabouts, or other similar structures on roads, usually roads where there are houses, so that vehicles are forced to move more slowly along them
[ before noun ] traffic-calming measures 交通缓行措施