grade separated crossing分隔过路处
grade pedestrian crossing地面行人过路处
at grade pedestrian crossing地面行人过路处
grade roundabout crossing平面环形交叉路口
at-grade pedestrian crossing地面行人过路处
separate grade crossing立体交叉道
grade-separated crossing分层过路处
at grade crossing平面交叉
protective grade crossing防护道口
Grade crossing is an important constituent part in road system,it is the“throat”of road traffic. This paper researches the elevation planning which is a significant design of grade crossing.
平面交叉口是道路系统的重要组成部分,是道路交通的咽喉,本文主要研究交叉口设计中极其重要的竖向设计。
参考来源 - 平面交叉口智能化竖向设计系统的研究与开发N-COUNT（可数名词） A grade crossing is a place where a railway track crosses a road at the same level. (铁路与公路相交的) 平交道口 [美国英语]