绿色，与红色相反，意味着安全性；它是道路交通中自由通行的颜色。
Green, as opposed to red, means safety; it is the color of free passage in road traffic.
本文从点、线、面三个层次建立了道路交通安全性能评价的指标体系与相应的评价方法。
This paper construct measure system of road safety properties evaluation and corresponding method through three levels that are respectively point, line and area.
与道路交通相比，其具有运量大、时间准、污染少和安全舒适以及与城市道路无平面交叉等无可比拟的优势。
Compared with road traffic, it has many advantages such as large traffic volume, less pollution, no level crossing with the urban road, prompt, security and comfort.
应用推荐