The Outline of the 15th Five-Year Plan sets forth measures to improve and modernize the comprehensive transportation system.

　　The resolution on the Outline of the 15th Five-Year Plan for National Economic and Social Development was approved by a vote at the Fourth Session of the 14th National People's Congress on March 12. The outline includes multiple chapters related to the field of transportation, with a dedicated section focusing on the construction of a modernized infrastructure system. It emphasizes the principles of maintaining appropriate advancement without excessive advancement, strengthening the overall planning of infrastructure, optimizing layout structures, promoting integration, and enhancing safety resilience and operational sustainability.

　　Regarding the improvement of a modern comprehensive transportation system, the outline proposes advancing network completion, strengthening chain links, and improving quality. It emphasizes enhancing cross-regional coordinated layouts and integrated connections across different modes of transportation to comprehensively improve the overall efficiency of transportation infrastructure. The plan includes improving the main framework of the national comprehensive three-dimensional transportation network, constructing high-quality strategic backbone corridors such as coastal, border, and river routes, as well as new western land-sea corridors. It aims to essentially complete the "eight vertical and eight horizontal" high-speed railway main corridors and the national expressway network, upgrade and enhance high-grade inland waterways, and essentially establish world-class port and airport clusters. The plan also focuses on strengthening coverage and accessibility in underdeveloped areas, upgrading and renovating conventional railways and national and provincial highways, launching a new round of rural road improvement initiatives, enhancing railway and branch airport construction in western regions, and optimizing road network layouts in border areas. It seeks to build international and national comprehensive transportation hub cities, strengthen the construction of collection and distribution networks and station connections, and improve national postal and express delivery hubs. The plan aims to establish a diversified and resilient international transportation channel system, promote cross-border transportation infrastructure connectivity, and foster the healthy and orderly development of international air cargo. It integrates functional enhancement with green, safe, and intelligent development, advancing the renovation and maintenance of transportation infrastructure, strengthening safety risk assessments and monitoring and early warning systems, and implementing highway safety resilience enhancement projects. The plan also deepens reforms in the comprehensive transportation system, promotes railway system reforms, and optimizes toll road policies.

　　The outline includes a dedicated section for the construction of the national comprehensive three-dimensional transportation network.