公路工程建设对自然环境和社会环境的影响很大。美国早在20年前对公路设计技术中的美学设计的原理和准则的制定就非常重视。公路设计应具有悦目、实用和经济等特点。公路美学设计准则还必须与公路建筑总造价相适应,并且还应有助于确保交通安全和顺畅。完满的公路设计是在工程材料、经济和环境都受到限制的情况下,将保证安全、经 Highway construction has a great impact on the natural environment and social environment. The United States attaches great importance to the development of the principles and guidelines for aesthetics design in highway design technology 20 years ago. Highway design should be pleasing, practical and economical. Road Aesthetic Design Guidelines must also be commensurate with the total cost of road construction and should also help ensure traffic safety and smoothness. The perfect road design is to ensure safety in the case of engineering materials, economy and environment are limited.