grade crossings

grade crossings

grade crossings 双语例句

1. A flow-oriented approach, based on analysis of waiting time for pedestrian at kerb and refuge, is proposed to determine the warrants for grade-separated pedestrian crossings at urban arterial intersections individually.
    本文建立了一种基于行人等待时间分析的城市干路交叉口立体过街设施设置条件的流程化分析方法。