在互通式立交的过程中，匝道作为其一个重要的基本单元，匝道设计的合理性将会直接影响立体交叉的功能、行车的安全性和舒适性以及工程投资的高低等。因此，本文通过介绍互通式立交匝道设计中的基本原则，阐述了匝道的平、纵面线形以及横断面的设计，同时指出了在互通式立交匝道设计过程中需要考虑的主要因素。%Ramp is an important basic unit in the design of interchange. Its design has direct effect on the function of the interchange, driving safety and comfort and the cost of the project. This article introduces the basic principle of interchange design, the horizontal and vertical linear and design of the cross section and at the same time points out the main factors needing attention in the design of the interchange.
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