设计理念就是公路勘察设计的总体思路和指导思想，是公路勘察设计的原则。

Design idea is the general thought and guiding ideology of highway survey and design.

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借鉴美国沥青路面联合会（APA）近年来提出的永久性路面的概念，探讨了我国高速公路的设计理念，以期更新我国沥青路面设计观念，控制路面结构的早期破坏，降低筑路成本。

The concept of perpetual pavement which was developed by the American Asphalt Pavement Alliance(APA) was referred to, and the design concept of expressway in our country was discussed.

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提出了公路线形设计规范与安全标准相融合的理念，为我国公路设计安全性审核提供参考。

A concept of the mixing of the road alignment norm with the safety standard was suggested to provide a reference for the examination and verification of the road design safety.

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