Measuring the structure of road networks
Measuring the structure of road networks
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DOI：
10.1111/j.1538-4632.2007.00707.x
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发表时间：
2007-07-01
影响因子：
3.6
通讯作者：
Levinson, David
中科院分区：
文献类型：
--
作者：
Xie, Feng;Levinson, David
空间网络在结构上既有拓扑变化，也有几何变化。本研究探讨道路网结构的测量。回顾了现有的异质性、连通性、可及性和互联性指标，并提出了三个补充指标，包括熵、连接模式和连续性指标。所提出的措施应用于16个测试网络，这些网络来自四个理想的基础网络：90度、45度、30度和完全连接。结果表明：路网的分化结构可以用熵测度来评价；预先确定的主干道连接模式可以通过环形、网状、带状、环形和树状等度量来识别和量化。连续性的衡量标准是从旅客的角度来评估网络的质量。本文提出的测度方法可以定量描述复杂路网的结构属性，比较不同路网结构，探讨路网在时空背景下的结构演变。这些措施在城市规划和交通实践中具有一定的应用价值。
Spatial networks display both topologic and geometric variations in their structure. This study investigates the measurement of a road network structure. Existing measures of heterogeneity, connectivity, accessibility, and interconnectivity are reviewed and three supplemental measures are proposed, including measures of entropy, connection patterns, and continuity. The proposed measures were applied to 16 test networks, which were derived from four idealized base networks: 90 degrees, 45 degrees, 30 degrees, and completely connected. The results show that the differentiated structures of road networks can be evaluated by the measure of entropy; predefined connection patterns of arterial roads can be identified and quantified by the measures of ringness, webness, beltness, circuitness, and treeness. A measure of continuity evaluates the quality of a network from the perspective of travelers. Proposed measures could be used to describe the structural attributes of complicated road networks quantitatively, to compare different network structures, and to explore the structural evolution of networks in the spatial and temporal context. These measures can find application in urban planning and transportation practice.