On Invulnerability of Container Transport Network Considering Zero-carbon Route
As countries around the world pay more attention to the carbon emissions in container transportation,zero-carbon routes have attracted many attentions as an innovative way to reduce carbon emissions.The container transportation process can be analyzed in the form of complex network topology.Although the addition of the zero-carbon route cannot change the structure of the shipping network,it has a certain impact on the container transport network due to the unique nature and the role of the port played on the zero-carbon route.The container transport network model including zero carbon routes is developed based on the actual data of ports.Three indicators:network efficiency,maximum connection subgraph scale and green port invulnerability index are proposed to measure the invulnerability of the network.Deliberate attack is chosen to trigger network cascade effect by simulation experiment.The impact of capacity parameters,green port number and load distribution coefficient on invulnerability of container transport network is analyzed.The results show that the addition of zero-carbon routes has a great impact on the invulnerability of the container transport network.When 25%of ports are green,the three aspects of network invulnerability can be balanced,including global network efficiency,green port resilience index,and maximum connectivity subgraph size.When the load distribution coefficient is 4,the invulnerability of the container transport network can be improved,and the impact caused by the addition of zero-carbon routes is reduced.After the important nodes are attacked,the network efficiency and the maximum connection subgraph scale are both reduced greatly.
water transportationzero-carbon routeinvulnerabilitycontainer transportation networkcascading effect