回り道

(1)a turning aside (of your course or attention or concern); "a diversion from the main highway"; "a digression into irrelevant details"; "a deflection from his goal"

(2)（進路や注意や関心を）脇へそらすこと

(3)a roundabout road (especially one that is used temporarily while a main route is blocked)

(4)（特に主ルートが封鎖されている間一時的に用いられる）迂回路