Author's Personal Copy
Author's personal copy Journal of Transport Geography 22 (2012) 288–291 Contents lists available at SciVerse ScienceDirect Journal of Transport Geography journal homepage: www.elsevier.com/locate/jtrangeo Viewpoint Accessibility impacts of high-speed rail David M. Levinson Networks, Economics, and Urban Systems Research Group, University of Minnesota, Department of Civil Engineering, 500 Pillsbury Drive SE, Minneapolis, MN 55455, USA article info abstract Keywords: High-speed rail Ó 2012 Elsevier Ltd. All rights reserved. Accessibility Hub-and-spoke Network structure Economic development 1. Introduction The reason for the hub-and-spoke architecture is to achieve economies of density in track usage and network effects at the High-speed rail lines have been built and proposed in numer- hub city which enable frequent service to multiple destinations. ous countries throughout the world. The advantages of such lines Multiple paths between origins and destinations would diffuse are a higher quality of service than competing modes (air, bus, the network effects and result in less frequent service, and therefore auto, conventional rail), potentially faster point-to-point times reduce demand. The hub-and-spoke architecture, while benefitting depending on specific locations, faster loading and unloading the network as a whole when demand is insufficient to enable times, higher safety than some modes, and lower labor costs. frequent point-to-point service, clearly serves the hub cities the The disadvantage primarily lies in higher fixed costs, potentially most, as they gain from all the incoming flows which create addi- higher energy costs than some competing modes, and higher noise tional demand, and thus greater service.
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