互通式立交匝道的平面线形,其构成一般较为复杂,且线位往往同时受着起终点的控制,这使得设计和计算工作十分繁琐。因此,探求简便而实用的设计方法就成为许多设计者所感兴趣的一个内容。本文所要介绍的是笔者在这方面的一次尝试。该方法以图解法定线和读取数据为主,以电算调整为辅助手段,并力求通过对计算机潜力的挖掘,将手算工作量减少到最低程度。 The planar alignment of the inter-interchange interchange ramp is generally complicated, and the thread position is often controlled from the terminal point, which makes the design and calculation work very cumbersome. Therefore, the search for simple and practical design has become a lot of designers interested in a content. This article is to introduce the author in this attempt. The method is mainly based on graphic method of statistic and data reading, and the adjustment of computer calculation is an auxiliary measure. The method seeks to reduce the amount of manual work to a minimum by mining the potential of computers.