Introduction  In the context of the "dual carbon strategy" in China, the integrated development of transportation and energy is an essential path for low carbon transformation in the transportation sector. To promote the development and construction of highway and energy integration projects, the main influencing factors and suggestions for the development of highway transportation and energy integration projects are proposed.

  Method  First, this paper analyzed the key points that should be concerned in the development of highway transportation and energy integration projects by comprehensively analyzing the characteristics of the highway energy consumption and sites, and the characteristics of development and construction of photovoltaic power generation projects. Second, this paper analyzed the construction conditions of the development and construction sites for highway transportation and energy integration projects. Finally, a comprehensive review and analysis were conducted on the unique issues encountered in the development and construction process of highway transportation and energy integration projects, which were different from conventional PV projects, and the main factors affecting the economy of highway transportation and energy integration photovoltaic development were analyzed.

  Result  This paper proposes the key points for the development of highway transportation and energy integration projects, proposes relevant technical suggestions on the development and construction of transportation and energy integration projects, and points out the main influencing factors and suggestions on the economic efficiency of highway slope photovoltaic development.

  Conclusion  The research results provide certain guidance for the focus and direction of feasibility study and engineering design for highway transportation and energy integration projects, and provide reference for the development and construction of transportation and energy integration projects, and promote the development of highway transportation and energy integration.