京津冀城际铁路网特性分析

Characteristic Analysis of Inter-city Railway Network in Beijing-Tianjin-Hebei Region

京津冀城际铁路网规划的实施,为以轨道交通方式实现城市间的互联互通提供了新思路。基于复杂网络理论,构建京津冀城际铁路换乘网拓扑结构模型,统计分析网络主要静态参数,结合复杂网络面临的典型攻击类型,研究京津冀城际网在选择性攻击下相关指标的变化情况,并分析网络中站点的贡献度。经过比较,以北京、天津和石家庄为代表的重要节点失效后,全局效率分别降低了3.93%、3.83%和3.49%,可见规划中以天津和石家庄为核心的多中心路网格局设置,对疏解北京非首都功能起到了积极的促进作用。

The implementation of the Beijing-Tianjin-Hebei inter-city railway network planning provides a new way to realize inter-city connectivity by rail transit.A topology model of Beijing-Tianjin-Hebei inter-city railway transfer network is established based on the complex network theory.Statistical analysis main static parameters of the network.The changes of relevant indicators under targeted attack is studied combined with the typical attack types faced by complex networks,and the contribution of the stations in the network were analyzed.By comparison,the global efficiency is reduced by 3.93%,3.83%and 3.49%respectively when the nodes of Beijing,Tianjin and Shijiazhuang failure.It follows that the layout of a multi-center road network with Tianjin and Shijiazhuang as the core have played a positive role in promoting the non-capital function of Beijing.