At the highway alignment design, the designer with no rules can not control plane and vertical alignment combination of road horizontal and vertical alignment design.
在山区高速公路线形设计中，设计人员无章可循，导致道路平纵线形组合设计无法控制。
This paper introduces a method of longitudinal slope design for vertical alignment smoothly transition.
为使路线交叉连接部处纵面线形平顺过渡，介绍了一种纵面坡度设计方法。
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