中文摘要：

为有效分析城际路网的运输需求与负载分布的空间结构特征,基于复杂网络理论与GIS技术,提出了城际路网的分层复杂网络结构模型。该模型克服了拓扑网络模型中只考虑节点连通关系而忽略运输需求与负载的空间分布特征的设计缺陷。所提出的交通介数、运输需求强度、负载介数指标能够有效测度城际路网的物理层、逻辑层与映射层网络的空间结构特征。结合我国内地城际路网的GIS及区域经济数据,分别计算了3个测度指标的空间分布。实证结果有效地解释了公路运输需求以京哈、京珠高速公路为界呈东强西弱分布的原因;揭示了我国内地城际路网的交通介数以西安为中心呈轴辐式分布,而在环渤海、长三角及京沪高速公路沿线表现出高负载中心性的结构特征。

英文摘要：

In order to effectively analyze the spatial structural characteristics of transport demand and traffic load distribution for intercity road network,we proposed the layered complex network model of intercity road network based on the complex network theory and GIS technology. This model has overcome the design flaws in topology network model,which only considered the node’s connecting relation,but ignored the spatial distribution characteristics of transport demand and load. The proposed indicators such as traffic betweenness,strength of transport demand and load betweenness can effectively measure the spatial structural characteristics of physical,logical and mapping layers of intercity road network. With the GIS and regional economy data of Chinese mainland intercity road network,we calculated the spatial distribution of these 3indicators respectively. The verification result effectively explained the reasons why the distribution of transport demand shows stronger in east and weaker in west as the boundary of Beijing- Harbin expressway and Beijing- Zhuhai expressway,and reveals that the traffic betweenness of intercity road network in mainland China shows the characteristics of hub-and-spoke network with the center of Xi’an,but it shows the structural characteristics of high load centricity around the district of Bohai Sea,Yangtze River Delta,and along the Beijing- Shanghai expressway.