交通网络抗毁性研究—以货运铁路网为例

Research on the invulnerability of transportation networks-taking freight railway networks as an example

本研究基于Space L法对复杂网络中的交通网络进行建模,在分析网络特征的基础上,分别选用不同的抗毁性测度指标定量模拟网络在不同攻击策略下的抗毁性、脆弱性表现,选择某省的货物铁路运输网络作为实际案例,进行了深入的研究和探讨。结果显示,本研究选择的货运铁路网具有无标度的特性;随机攻击策略下的货运铁路网络在抗毁性方面表现优异;在蓄意进攻策略下,脆弱性表现更强烈。

The research utilizes the Space L technique to simulate the transportation network within complex networks.Through examining network traits,various resilience metrics are chosen to quantitatively model how the network responds to different attack strategies,evaluating its resilience and vulnerability.This study,thus,chose a railway freight network in a certain province as an exemplar for examination.The outcomes demonstrate that the chosen freight railway network has scale-free features;when subjected to random attack tactics,it exhibits remarkable resilience;however,when exposed to deliberate offensive strategies,vulnerability is more pronounced.