Measuring the Structure of Road Networks
AbstractSpatial networks display both topologic and geometric variations in their structure. This study investigates the measurement of 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. Proposed measures were applied to 16 test networks, which were derived from 4 idealized base networks: 90-degree, 45-degree, 30-degree, 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 their applications in urban planning and transportation practice.
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Bibliographic InfoPaper provided by University of Minnesota: Nexus Research Group in its series Working Papers with number 200702.
Date of creation: 2005
Date of revision:
Publication status: Published in Geographical Analysis 39(3) pp.336-356
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Postal: Dept. of Civil Engineering, 500 Pillsbury Drive SE, Minneapolis, MN 55455
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Web page: http://nexus.umn.edu
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Networks; Transportation; Structure; Entropy; Pattern; Continuity;
Find related papers by JEL classification:
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- Pavithra Parthasarathi & Hartwig Hochmair & David Levinson, 2009. "The Influence of Network Structure on Travel Distance," Working Papers 000069, University of Minnesota: Nexus Research Group.
- David Levinson, 2011. "Network Structure and City Size," Working Papers 000094, University of Minnesota: Nexus Research Group.
- Alexander Erath & Michael Löchl & Kay Axhausen, 2009. "Graph-Theoretical Analysis of the Swiss Road and Railway Networks Over Time," Networks and Spatial Economics, Springer, vol. 9(3), pages 379-400, September.
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