基于复杂网络的区域旅游交通网络特征研究——以云南省为例

Complexity of Regional Tourism Transportation Network Based on Complex Networks Theory:A Case Study of Yunnan Province

为分析区域旅游交通网络的复杂性特征,选取节点度、平均最短距离、聚类系数、有效性及介数等指标,对区域旅游交通网络的拓扑结构进行定量评估。利用随机攻击与蓄意攻击分别对区域旅游交通网络的鲁棒性进行测试,并以云南省为例评估区域旅游交通网络的拓扑结构与实际性能。结果表明:昆明、普洱是云南旅游公路网络最重要的节点,旅游航空网络的平均最短距离最小,旅游铁路网络的连接最为紧密;旅游公路网络与旅游铁路网络的度值分布集中于1～5,旅游航空网络的度值介于1～11;在蓄意攻击情况下,云南旅游交通网络的平均最短距离急剧上升后快速下降,网络在较短时间内崩溃;云南旅游交通网络对于中心节点过于依赖,缺乏中心节点外围的环形交通保护及节点间的旅游交通预备通道,而改善关键交通节点的抗毁性可以有效提升网络整体的连通性和稳定性。

For the complexity analysis of regional tourism transportation network, this paper uses the specific indexes like node degree, average shortest path length, clustering coefficient, effectiveness, betweenness to quantitatively evaluate the topological structure of regional tourism transportation network. And then, respectively testing robustness of regional tourism transportation network based on random attack and hostile attack, assessing topological structure and its actual performance with Yunnan as an example. The results show that： Kunming and Puer are the important nodes of tourism highway network in Yunnan, they also have minimum average shortest path length of tourism aviation network and shortest connected distance of tourism railway network; The degree distribution of tourism highway network and tourism railway network is between 1~5, and the degree distribution of tourism aviation network is between 1~11; Under the hostile attack, the average shortest path length of tourism transportation network rises sharply and then decline rapidly, the network collapses in a short time; Yunnan tourism transportation network relies on central city excessively, the lack of ring protection of central city and the preparation channel of urban tourist traffic at the same time, which can be enhanced the connectivity and stability of the whole network effectively by improving the robustness of the key node.