Rodríguez-Déniz, HéctorSuau-Sanchez, PereVoltes-Dorta, Augusto2017-01-112017-01-112013-11-09Héctor Rodríguez-Déniz, Pere Suau-Sanchez, Augusto Voltes-Dorta, Classifying airports according to their hub dimensions: an application to the US domestic network, Journal of Transport Geography, Volume 33, December 2013, pp188-1950966-6923http://dx.doi.org/10.1016/j.jtrangeo.2013.10.011https://dspace.lib.cranfield.ac.uk/handle/1826/11249Government agencies classify airports for different purposes, including the allocation of public funding for capacity developments. In a context of hub classification, determining the contribution of each airport to the national network in terms of the two dimensions of hubbing -i.e., traffic generation and connectivity- is a key aspect. In this regard, the choice of an appropriate connectivity indicator is still an unresolved issue. This paper adapts the well-known flow centrality indicator to an air transport context and develops a novel measure of airport connectivity. An application to the US domestic network is provided, using quarterly data on passenger demand to perform a detailed time-series analysis of airport connectivity patterns between 1993 and 2012. The flow centrality indicator is then used to define an alternative airport classification method within the context of the Federal Aviation Administration’s National Plan of Integrated Airport Systems (NPIASs). Results show that there is potential for improving the existing airport typology by explicitly separating connectivity and traffic generation as classification criteria.enAttribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.Airport networksConnectivityFlow centralityHubbingHierarchical clusteringArticle