detour
noun [ C ] uk/ˈdiː.tɔːr/ us/ˈdiː.tʊr/
绕行的路，迂回路
a different or less direct route to a place that is used to avoid a problem or to visit somewhere or do something on the way
You'd be wise to make (US also take) a detour to avoid the roadworks. 绕开道路施工地点是明智之举。
US (UK diversion)绕行路线
a different route that is used because a road is closed
Traffic detours will be kept to a minimum throughout the festival. 在节日期间，尽量不实行交通绕行措施。