复合型平面线形的设计模型

A Design Model of Compound Transition Curve in Horizontal Alignment of Highway

介绍复合型平面线形的设计模型，在此基础上，简要介绍由两个复合型组成的同向复合型平面线形的设计模型。

This paper introrduces a useful patten of horizontal alignment of highway, a circular are linked by a compound transition curve, which consists of two clothoids. It further introduces a design model for calculating the elements of setting out of the alignment patten.