指的是为铺筑路面，在路基上按照设计要求修筑的浅槽。分挖槽、培槽、半挖半培槽三种形式。
在压路机不能达到的路槽和检查井边缘，采用蛙式打夯机夯实。
Depressed trough, manhole edges and other places where the roller can not reach shall be compacted with frog rammer.
从加强路基和路面排水及路槽处理等方面着手，提出防治的对策。
Preventive measures are presented aiming at strengthening the subgrade and pavement drainage and the trench treatment.
从路基(路槽)、垫层、基层、到路面面层，每一层都必须控制平整度。
From road bed (way trough), storey of the cushion, basic unit, to the road surface, every storey hast regulate the roughness.
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