中国疆域辽阔，气候复杂多变，从北向南分别处于寒带、温带和热带，从西部的青藏高原到东部沿海地区，高程相差4000m以上，不同地区的经济发展存在一定差距，造成交通量差异较大。不同的自然条件、车辆车型、车辆轴型，决定着不同地区、不同等级的路面结构设计和路面材料选择存在着复杂性和差异性。同时路面的造价在道路工程总造价中的占比较高，在路面设计中除了考虑自然因素、工程因素之外还要考虑经济因素。近年来，随着中国公路建设的高速发展，中国工程技术人员在公路路面工程的设计、施工和养护等方面积累了丰富的工程经验，完善和发展了路面设计理论。这些经验与成果在《公路沥青路面设计规范》(JTG D50—2017)中得到了充分的体现。本英文版的编译发布便是希望将中国的工程经验和技术成果与各国同行进行交流分享，为其他国家类似地形地质条件的公路建设提供参考借鉴。

1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Design Criteria
4 Pavement Structural Design
4.1 General
4.2 Pavement structure
4.3 Subgrade
4.4 Base and subbase
4.5 Surface course
4.6 Functional layer
4.7 Shoulders
4.8 Pavement drainage
5 Material Design Parameters
5 1 General
5 2 Subgrade materials
5 3 Granular materials
5 4 Chemically stabilized materials
5 5 Asphalt bound materials
5 6 Poisson's ratio
6 Calculation and Verification of Pavement Structures
6.1 General
6.2 Design parameters
6.3 Parameters relating to traffic, material and environment
6.4 Procedure of calculation and verification on a pavement structure
7 Design of Pavement Rehabilitation
7.1 General
7.2 Investigation and analysis of the existing pavement
7.3 Rehabilitation methodology
7.4 Structural verification of pavement rehabilitation
8 Design of Bridge Deck Pavement
8.1 General
8.2 Pavement on Portland cement concrete bridge deck
8.3 Steel bridge deck pavement
Appendix A Parameter Analysis of Traffic Loadings
Appendix B Method of Calculation and Verification of Pavement Structures
Appendix C Asphalt Pavement Structures
Appendix D Standard Method of Test for Measuring the Resilient Modulus of Unbound Granular Material
Appendix E Standard Method of Test for Determing the Resilient Modulus of Chemically Stabilized Materials
Appendix F Standard Method of Test for Determining the Uulaxial Penetration Strength of Asphalt Mixture
Appendix G Temperature Factors and Equivalent Temperature
Wording Explanation for these Specifications
Background to Provisions
1 General Provisions
3 Design Criteria
4 Pavement Structural Design
5 Material Design Parameters
6 Calculation and Verification of Pavement Structures
7 Design of Pavement Rehabilitation
8 Design of Bridge Deck Pavement
Appendix A Parameter Analysis of Traffic Loadings
Appendix B Method of Calculation and Verification of Pavement Structures
Appendix C Asphalt Pavement Structures
Appendix D Standard Method of Test for Measuring the Resilient Modulus of Unbound Granular Material
Appendix G Temperature Factors and Equivalent Temperature
Technical Terms in English and Chinese