Hierarchical System of Dry Bulk Shipping Network in the "21st Century Maritime Silk Road"

The ocean is a natural link for economic, trade, and cultural exchanges between countries. The "21st Century Maritime Silk Road" is a new type of trade road proposed by China to connect the world under the changing situation of global politics and trade. Based on the AIS data of global dry bulk carriers in 2014, this paper selected and counted AIS data of 26 countries along the "21st Century Maritime Silk Road" to build a dry bulk shipping network with the number of routes and the number of trades. The two types of networks constructed are analyzed using primary flow analysis and multiple flow analysis, with a view to providing support and basis for the construction of the "21st Century Maritime Silk Road" and trade cooperation between countries. The results show that: Singapore is the most important node in both networks; the dry bulk shipping network hierarchy of the number of routes is more obvious; the multiple flow analysis results show that China is at the first level in the dry bulk shipping network with the number of routes.