将常见的地下道路分为小汽车专用道路、混合通行道路和货车地下通道等三种形式，分析了地下道路及环境特征。

In this paper, the urban underground roads are divided into different types, such as car-only underground road, mixed-traffic underground road, and truck-only underground road.

youdao

将常见的地下道路分为小汽车专用道路、混合通行道路和货车地下通道等三种形式，分析了地下道路及环境特征。

In this paper, the urban underground roads are divided into different types, such as car-only underground road, mixed-traffic underground road, and truck-only underground road.

youdao