Review of Energy-saving and Emission-reduction Issues and Technologies in the Construction of Road Infrastructure

Road facilities are one of the huge infrastructures, which are huge in size and wide in distribution, and play an important role in the national economic development and the daily lives of the people. In the process of construction, operation, maintenance and demolition of road infrastructure, not only are a large number of new building materials needed, but also a lot of waste materials are produced. In this process, a large amount of energy is needed for the production and transportation of building materials and the operation of various construction equipment during construction. At the same time, a large amount of CO₂ and other harmful gases are generated. Therefore, the research and application of energy-saving and emission-reduction technologies in the field of road infrastructure are of great significance for achieving the dual carbon target. First, the carbon emission problems existing in China's road infrastructure construction were introduced. Second, the characteristics and application of energy-saving and emission-reduction technologies of more mature road infrastructure construction at domestic and overseas were introduced. Third, the development direction and trend of future energy saving and emission reduction technologies were analyzed. The analysis shows that new technologies in road infrastructure construction and operation management can play an important role in energy conservation and emission reduction. The research and development of innovative technologies and the promotion and application of mature technologies should be strengthened in the future.