剖析地铁利弊,推出畅通公路桥型

The Analysis of the Advantages and Disadvantages of the Subway Transportation and the Promotion of Smooth Highway Bridge Types

本文通过剖析地铁的利弊，进一步阐述了地铁建设与雾霾的关联，推出了畅通公路桥型。既解决了城市交通拥堵的问题，又美化了城市环境。

In this paper, through the analysis of advantages and disadvantages of the subway, the author further explains the relevance of metro construction and haze, launched the smooth highway bridge types. They not only solved the pr- oblem of city traffic congestion, but also beautify the city environment.