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公路线形是曲线与直线连接而成的空间立体线形形状,它的设计好坏对车辆行驶的安全性有很大影响。线形设计不合理就会对交通安全产生不良后果,因此就需要对线形设计的设计元素进行限制。
The road shape is a three-dimensional shape of a space formed by connecting curves and straight lines. The design of the road has a great influence on the safety of the vehicle. Unreasonable linear design will have adverse consequences for traffic safety, so you need to limit the design elements of the linear design.