随着高速公路的出现,公路线形设计的理论和原则也有很大的发展。在一般公路上,线形设计的理论基础是几何形状和汽车动力学相结合的原则。但车速提高之后,这种原则就会感到不足。一方面是高速行车时,路线的舒顺性成为一个重要条件;另一方面是高速行车时,汽车驾驶员对行驶路线的及时反应也成为一个重要因素。本文所介绍的内容就是说明这两方面的情况和其互相关系。我国目前还没有高速公路,但较高级的一、二级公路已有建成或正拟修建。随着公路等级和车速的提高,对公路线形设计势必提出相应的要求,因此本文内容是可供借鉴的。 With the advent of highways, the theory and principle of highway alignment have also been greatly developed. In general, the theoretical basis of linear design is the combination of geometry and automotive dynamics. But after the speed increase, this principle will feel inadequate. On the one hand, high-speed traffic, the comfort of the route has become an important condition; the other hand, high-speed traffic, the driver on the driving route of timely response has also become an important factor. This article describes the content of these two aspects and their interrelationships. At present, there are no expressways in our country, but more advanced ones and secondary roads have been completed or are under construction. With the improvement of highway grade and vehicle speed, it is bound to put forward corresponding requirements for highway alignment design. Therefore, the content of this article is available for reference.