As the Belt and Road Initiative (BRI) takes root, the Air Transportation Network (ATN) is gaining prominence, as evidenced by the Air Silk Road Initiative proposed in 2017. However, the ATN of the BRI countries and its integration with maritime and rail transport have not been studied. This paper analyzes the network structure of the ATN of the BRI countries. A multi-layer weighted betweenness metric is used to rank the centrality of the hubs in the network based on the connectivity, distance, and traffic between the airports. Using the centrality ranking of the airports to reflect the distribution of traffic demand in the BRI countries, a gravity model is then applied to quantify the centrality of the maritime and rail hubs. Mapping these hubs to their home cities, this paper assesses the current state of the multimodal transport hubs and recommends new hubs to increase the international trading reach of the BRI.

随着“一带一路”倡议（BRI）扎根，航空运输网络（ATN）日益重要，正如2017年提出的“丝绸之路倡议”所证明的那样。但是，“一带一路”国家的ATN及其与海运和铁路的整合尚未研究运输。本文分析了“一带一路”沿线国家ATN的网络结构。多层加权中间性度量标准用于根据机场之间的连通性，距离和交通量，对网络中枢纽的中心性进行排名。利用机场的中心度排名以反映“一带一路”沿线国家交通需求的分布，然后使用引力模型对海运和铁路枢纽的中心度进行量化。将这些枢纽映射到他们的家乡城市，