... 计算行车速度(设计车速) design speed 道路建筑限界boundary line of road construction 净空clearance ...
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?建筑限界
建筑限界(boundary line of road construction) 5.2 公路路基横断面组成及宽度 1.路基横断面组成 （1）一般组成 1）行车道(carriageway)：供各种车辆行驶部分的总称。
双语例句
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Article 44. The cargo loading and unloading berths along the city road shall be set outside the boundaryline or situated it on the ground floor of a construction.