Research on the Vulnerability of China-Europe Railway Express Network

摘要

In order to study the vulnerability of the European express train transport network, statistics were made on the countries and cities along the route. The two methods of intentional attack are to study the changes of the network characteristic values, such as the average degree of the network, the proportion of isolated nodes, the average path length, and the network efficiency. Under the deliberate attack, the node average degree, aggregation coefficient, network efficiency, and average path length of the China-Europe train network decrease rapidly with the increase of the attack ratio and decrease to 0. Under random attack, the average node degree, network efficiency, and average path length of the network show a slow decreasing trend with the increase of the attack ratio, and the aggregation coefficient increases slowly and then decreases. The isolated node is no longer connected to other nodes under the deliberate attack and random attack, so the attacked node is the isolated point, which increases the cardinality of the isolated node. The research shows that the China Railway Express network is relatively strong when subjected to random attacks, and relatively vulnerable when subjected to deliberate attacks. At the same time, it is found that some nodes in the China Railway Express play an important role in the connectivity of the network.