A general model for highway plan alignment design was introduced in this paper, which has the advantages of both the line method and curve method.
公路平面线形设计的通用模式是将传统的直线法和曲线法结合起来，兼有两者的优点。
This paper introduces the mathematical model for highway route alignment. This model can determine plan position of highway straight and curve by the control points.
详细介绍了用公路路线上控制点坐标进行公路直线和曲线平面位置定线的数学模型。
This paper analyzes the deficiency of the straight design method of highway alignment and puts forward the necessity of the researching curve design method.
分析了公路平面线形直线型设计法的不足，提出曲线型设计法研究的必要性。
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