{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T04:05:14Z","timestamp":1774497914482,"version":"3.50.1"},"reference-count":106,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2018,1,4]],"date-time":"2018-01-04T00:00:00Z","timestamp":1515024000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>The delimitation of urban space is conceptually elusive and fuzzy. Commonly, urban areas are delimited through administrative boundaries. These artificial, fixed boundaries, however, do not necessarily represent the actual built-up extent, the urban catchment, or the economic linkage within and across neighboring metropolitan regions. For an approach to spatially delimit an urban corridor\u2014a generically defined concept of a massive urban area\u2014we use the Boston to Washington (Boswash) region as an example. This area has been consistently conceptualized in literature as bounded urban space. We develop a method to spatially delimit the urban corridor using multi-source geodata (built-up extent, infrastructure and socioeconomic data) which are based on a grid rather than on administrative units. Threshold approaches for the input data serve to construct Boswash as varying connected territorial spaces, allowing us to investigate the variability of possible spatial forms of the area, i.e., to overcome the simple dichotomous classification in favor of a probability-based differentiation. Our transparent multi-layer approach, validated through income data, can easily be modified by using different input datasets while maintaining the underlying idea that the likelihood of an area being part of an urban corridor is flexible, i.e., in our case a factor of how many input layers return positive results.<\/jats:p>","DOI":"10.3390\/ijgi7010015","type":"journal-article","created":{"date-parts":[[2018,1,4]],"date-time":"2018-01-04T11:52:47Z","timestamp":1515066767000},"page":"15","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Are We in Boswash Yet? A Multi-Source Geodata Approach to Spatially Delimit Urban Corridors"],"prefix":"10.3390","volume":"7","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6842-4606","authenticated-orcid":false,"given":"Isabel","family":"Georg","sequence":"first","affiliation":[{"name":"Department of Geoinformatics, University of Salzburg, 5020 Salzburg, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1860-8458","authenticated-orcid":false,"given":"Thomas","family":"Blaschke","sequence":"additional","affiliation":[{"name":"Department of Geoinformatics, University of Salzburg, 5020 Salzburg, Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4360-9126","authenticated-orcid":false,"given":"Hannes","family":"Taubenb\u00f6ck","sequence":"additional","affiliation":[{"name":"Earth Observation Center, Remote Sensing Data Center, German Aerospace Center (DLR), 82234 Oberpfaffenhofen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,1,4]]},"reference":[{"key":"ref_1","unstructured":"Martine, G. (2011). Preparing for sustainable urban growth in developing areas. UN-DESA (2011). Population Distribution, Urbanization, Internal Migration and Development: An International Perspective, United Nations Publication."},{"key":"ref_2","unstructured":"United Nations Human Settlements Programme (UN-Habitat) (2013). State of the World\u2019s Cities 2012\/13. Prosperity of Cities, Routledge."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1007\/s11442-016-1273-4","article-title":"New spatial dimensions of global cityscapes: From reviewing existing concepts to a conceptual spatial approach","volume":"26","author":"Georg","year":"2016","journal-title":"J. Geogr. Sci."},{"key":"ref_4","unstructured":"Angel, S., Sheppard, S., Civco, D.L., Buckley, R., Chabaeva, A., Gitlin, L., Kraley, A., Parent, J., and Perlin, M. (2005). The Dynamics of Global Urban Expansion, Transport and Urban Development Department, World Bank."},{"key":"ref_5","unstructured":"Burdett, R. (2007). The Urbanization of the World. The Endless City, Phaidon Press Limited."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1016\/j.apgeog.2013.12.002","article-title":"New dimensions of urban landscapes: The spatio-temporal evolution from a polynuclei area to a mega-region based on remote sensing data","volume":"47","author":"Wiesner","year":"2014","journal-title":"Appl. Geogr."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Georg, I., Blaschke, T., and Taubenb\u00f6ck, H. (2016). A Global Inventory of Urban Corridors Based on Perceptions and Night-Time Light Imagery. ISPRS Int. J. Geo-Inf., 5.","DOI":"10.3390\/ijgi5120233"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1111\/j.1467-8306.1969.tb00655.x","article-title":"Corridors: A theory of urban systems","volume":"59","author":"Whebell","year":"1969","journal-title":"Ann. Assoc. Am. Geogr."},{"key":"ref_9","unstructured":"United Nations Human Settlements Programme (UN-Habitat) (2008). State of the World's Cities 2010\/2011: Bridging the Urban Divide, Earthscan."},{"key":"ref_10","unstructured":"Zonneveld, W., and Trip, J.J. (2003). The corridor as a transport network. Megacorridors in North West Europe. Investigating a New Transnational Planning Concept, Delft University Press. Housing and Urban Policy Studies 27."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"206","DOI":"10.1007\/s11769-005-0031-9","article-title":"Evolution and development of Guangzhou-Hong Kong corridor","volume":"15","author":"Li","year":"2005","journal-title":"Chin. Geogr. Sci."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1016\/S0169-2046(99)00079-1","article-title":"Regional design: Recovering a great landscape architecture and urban planning tradition","volume":"47","author":"Neuman","year":"2000","journal-title":"Landsc. Urban Plan."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/S0966-6923(03)00029-2","article-title":"Concepts and definitions of corridors: Evidence from England\u2018s Midlands","volume":"11","author":"Chapman","year":"2003","journal-title":"J. Trans. Geogr."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"189","DOI":"10.2307\/142307","article-title":"Megalopolis or the urbanization of the northeastern seaboard","volume":"33","author":"Gottmann","year":"1957","journal-title":"Econ. Geogr."},{"key":"ref_15","unstructured":"Lang, R.E., and Dhavale, D. (2005). Beyond Megalopolis: Exploring America\u2019s New \u201cMegapolitan\u201d Geography, Metropolitan Institute, Virginia Technical University."},{"key":"ref_16","unstructured":"Regional Plan Association (2007). Northeast Megaregion 2050: A Common Future, Regional Plan Association."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"459","DOI":"10.1093\/cjres\/rsn018","article-title":"The rise of the mega-region","volume":"1","author":"Florida","year":"2008","journal-title":"Camb. J. Reg. Econ. Soc."},{"key":"ref_18","unstructured":"Laquian, A. (2011). The planning and governance of Asia\u2019s mega-urban regions. UN-DESA (2011). Population Distribution, Urbanization, Internal Migration and Development: An International Perspective, United Nations Publication."},{"key":"ref_19","unstructured":"Lo, F.C., and Yeung, Y.M. (1996). The evolving urban system in North-East Asia. Emerging World Cities in Pacific Asia, UNU Press."},{"key":"ref_20","unstructured":"United Nations Human Settlements Programme (UN-Habitat) (2008). The State of African Cities 2008. A Framework for Addressing Urban Challenges in Africa, UN-Habitat."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"76","DOI":"10.1007\/BF03031774","article-title":"Beyond the Blue Banana? Structural Change in Europe\u2019s Geo-Economy","volume":"38","author":"Hospers","year":"2003","journal-title":"Intereconomics"},{"key":"ref_22","unstructured":"Abler, R., Adams, J.S., and Gould, P. (1972). Spatial Organization: The Geographer\u2019s View of the World, Prentice-Hall International."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"214","DOI":"10.1080\/15230406.2014.902755","article-title":"Geons\u2014Domain-specific regionalization of space","volume":"41","author":"Lang","year":"2014","journal-title":"Cartogr. Geogr. Inf. Sci."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1111\/j.1435-5597.1968.tb01449.x","article-title":"Interdependency of Spatial Structure and Spatial Behavior: A General Field Theory Formulation","volume":"21","author":"Berry","year":"1968","journal-title":"Pap. Reg. Sci."},{"key":"ref_25","unstructured":"Castells, M. (2000). The Rise of the Network Society, Wiley-Blackwell. [2nd ed.]."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"548","DOI":"10.1111\/1467-9663.00225","article-title":"Local and global: Cities in the network society","volume":"93","author":"Castells","year":"2002","journal-title":"Tijdschrift voor Economische en Sociale Geografie"},{"key":"ref_27","first-page":"727","article-title":"Mapping city lights with nighttime data from the DMSP Operational Linescan System","volume":"63","author":"Elvidge","year":"1997","journal-title":"Photogramm. Eng. Remote Sens."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"361","DOI":"10.1016\/S0034-4257(97)00046-1","article-title":"A technique for using composite DMSP\/OLS \u201ccity lights\u201d satellite data to map urban area","volume":"61","author":"Imhoff","year":"1997","journal-title":"Remote Sens. Environ."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"277","DOI":"10.1016\/j.rse.2005.02.002","article-title":"Spatial analysis of global urban extent from DMSP-OLS night lights","volume":"96","author":"Small","year":"2005","journal-title":"Remote Sens. Environ."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"3476","DOI":"10.3390\/rs5073476","article-title":"Can night-time light data identify typologies of urbanization? A global assessment of successes and failures","volume":"5","author":"Zhang","year":"2013","journal-title":"Remote Sens."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1016\/j.rse.2017.06.039","article-title":"Using multi-source geospatial big data to identify the structure of polycentric cities","volume":"202","author":"Cai","year":"2017","journal-title":"Remote Sens. Environ."},{"key":"ref_32","unstructured":"Corbane, C., Kemper, T., Freire, S., Louvrier, C., and Pesaresi, M. (2016). Monitoring the Syrian Humanitarian Crisis with the JRC\u2019s Global Human Settlement Layer and Night-Time Satellite Data, Publications Office of the European Union."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1733","DOI":"10.1016\/j.rse.2010.03.003","article-title":"Mapping global urban areas using MODIS 500-m data: New methods and datasets based on \u2018urban ecoregions\u2019","volume":"114","author":"Schneider","year":"2010","journal-title":"Remote Sens. Environ."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"1004","DOI":"10.1109\/JSTARS.2012.2226563","article-title":"An automated method for global urban area mapping by integrating ASTER satellite images and GIS data","volume":"6","author":"Miyazaki","year":"2013","journal-title":"IEEE J. Sel. Top. App. Earth Obs. Remote Sens."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"2184","DOI":"10.1109\/JSTARS.2012.2235410","article-title":"Fast and efficient urban extent extraction using ASAR wide swath mode data","volume":"6","author":"Gamba","year":"2013","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"054011","DOI":"10.1088\/1748-9326\/10\/5\/054011","article-title":"A global map of urban extent from nightlights","volume":"10","author":"Zhou","year":"2015","journal-title":"Environ. Res. Lett."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"061702","DOI":"10.1117\/1.JRS.6.061702","article-title":"TanDEM-X mission: New perspectives for the inventory and monitoring of global settlement patterns","volume":"6","author":"Esch","year":"2012","journal-title":"J. Appl. Remote Sens."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"1959","DOI":"10.1080\/01431160412331291297","article-title":"GLC2000: A new approach to global land cover mapping from Earth observation data","volume":"26","author":"Belward","year":"2005","journal-title":"Int. J. Remote Sens."},{"key":"ref_39","unstructured":"Bontemps, S., Defourny, P., Van Bogaert, E., Arino, O., Kalogirou, V., and Ramos Perez, J. (2011). GlobCOVER 2009 Products Description and Validation Report, ESA."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"1303","DOI":"10.1080\/014311600210191","article-title":"Development of a global land cover characteristics database and IGBP DISCover from 1 km AVHRR data","volume":"21","author":"Loveland","year":"2000","journal-title":"Int. J. Remote Sens."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1080\/17538941003777521","article-title":"Production of Global Land Cover, GLCNMO","volume":"4","author":"Tateishi","year":"2011","journal-title":"Int. J. Digit. Earth"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"2102","DOI":"10.1109\/JSTARS.2013.2271445","article-title":"A Global Human Settlement Layer from optical HR\/VHR RS data: Concept and first results","volume":"6","author":"Pesaresi","year":"2013","journal-title":"IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"04014021","DOI":"10.1061\/(ASCE)UP.1943-5444.0000207","article-title":"Measuring spatial structure of China\u2019s megaregions","volume":"141","author":"Yang","year":"2014","journal-title":"J. Urban Plan. Dev."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1016\/j.habitatint.2016.11.007","article-title":"Measuring urban agglomeration using a city-scale dasymetric population map: A study in the Pearl River Delta, China","volume":"59","author":"Wei","year":"2017","journal-title":"Habitat Int."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/j.compenvurbsys.2015.07.001","article-title":"The spatial network of megaregions\u2014Types of connectivity between cities based on settlement patterns derived from EO-data","volume":"54","author":"Wiesner","year":"2015","journal-title":"Comput. Environ. Urban Syst."},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Taubenb\u00f6ck, H., Ferstl, J., and Dech, S. (2017). Regions set in stone\u2014Classifying and categorizing regions in Europe by settlement patterns derived from EO-data. ISPRS Int. J. Geo-Inf., 6.","DOI":"10.3390\/ijgi6020055"},{"key":"ref_47","doi-asserted-by":"crossref","unstructured":"Taubenb\u00f6ck, H., Bauer, P., Gei\u00df, C., and Wurm, M. (2017, January 6\u20138). Mega-regions in China\u2014A spatial analysis of settlement patterns using Earth observation data. Proceedings of the IEEE-CPS Joint Urban Remote Sensing Event (JURSE), Dubai, UAE.","DOI":"10.1109\/JURSE.2017.7924603"},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"1269","DOI":"10.1080\/13658816.2010.510801","article-title":"Zipf's law for all the natural cities in the United States: A geospatial perspective","volume":"25","author":"Jiang","year":"2010","journal-title":"Int. J. Geogr. Inf. Sci."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"20140745","DOI":"10.1098\/rsif.2014.0745","article-title":"Constructing cities, deconstructing scaling laws","volume":"12","author":"Arcaute","year":"2015","journal-title":"J. R. Soc. Interface"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"659","DOI":"10.1177\/0042098007087340","article-title":"Compact, dispersed, fragmented, extensive? A comparison of urban growth in twenty-five global cities using remotely sensed data, pattern metrics and census information","volume":"45","author":"Schneider","year":"2008","journal-title":"Urban Stud."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1025","DOI":"10.1068\/a231025","article-title":"The modifiable areal unit problem in multivariate statistical analysis","volume":"23","author":"Fotheringham","year":"1991","journal-title":"Environ. Plan. A"},{"key":"ref_52","unstructured":"Openshaw, S. (1984). The Modifiable Areal Unit Problem, University of East Anglia. Geo Abstracts."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1080\/07038992.1999.10874734","article-title":"The scale issue in the social and natural sciences","volume":"25","author":"Marceau","year":"1999","journal-title":"Can. J. Remote Sens."},{"key":"ref_54","first-page":"113","article-title":"The Modifiable Areal Unit Problem\u2014Analysis of Correlation and Regression. Equilibrium","volume":"9","author":"Pietrzak","year":"2014","journal-title":"Q. J. Econ. Eco. Policy"},{"key":"ref_55","doi-asserted-by":"crossref","unstructured":"Taubenb\u00f6ck, H., Standfu\u00df, I., Klotz, M., and Wurm, M. (2016). The physical density of the city\u2014Deconstruction of the delusive density measure with evidence from European megacities. ISPRS Int. J. Geo-Inf., 5.","DOI":"10.3390\/ijgi5110206"},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1057\/pt.2011.20","article-title":"How serious is the Modifiable Areal Unit Problem for analysis of English census data?","volume":"145","author":"Flowerdew","year":"2011","journal-title":"Popul. Trends"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1016\/j.rse.2014.03.004","article-title":"A cluster-based method to map urban area from DMSP\/OLS nightlights","volume":"147","author":"Zhou","year":"2014","journal-title":"Remote Sens. Environ."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"482","DOI":"10.1080\/00330124.2012.700499","article-title":"Head\/tail breaks: A new classification scheme for data with a heavy-tailed distribution","volume":"65","author":"Jiang","year":"2013","journal-title":"Prof. Geogr."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"2205","DOI":"10.1016\/j.rse.2009.06.001","article-title":"A SVM-based method to extract urban areas from DMSP-OLS and SPOT VGT data","volume":"113","author":"Cao","year":"2009","journal-title":"Remote Sens. Environ."},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"1335","DOI":"10.1109\/TGRS.2004.827257","article-title":"A relative evaluation of multiclass image classification by support vector machines","volume":"42","author":"Foody","year":"2004","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_61","unstructured":"Gottmann, J. (1961). Megalopolis: The Urbanized Northeastern Seaboard of the United States, The Twentieth Century Fund."},{"key":"ref_62","first-page":"109","article-title":"Megalopolitan systems around the world","volume":"41","author":"Gottmann","year":"1976","journal-title":"Ekistics"},{"key":"ref_63","doi-asserted-by":"crossref","unstructured":"Pacione, M. (2009). Urban Geography: A Global Perspective, Routledge. [3rd ed.].","DOI":"10.4324\/9780203881927"},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"687","DOI":"10.1191\/0309132504ph514oa","article-title":"Patrick Geddes, Lewis Mumford and Jean Gottmann: Divisions over \u2018megalopolis\u2019","volume":"28","author":"Baigent","year":"2004","journal-title":"Prog. Hum. Geogr."},{"key":"ref_65","first-page":"705","article-title":"The Next Thirty-Three Years: A Framework for Speculation","volume":"96","author":"Kahn","year":"1967","journal-title":"Daedalus"},{"key":"ref_66","unstructured":"Oswald, M.R., Gayley, R.J., Ames, D.L., and McNeil, S. (2009). Evaluating the Current State of the BOSWASH Transportation Corridor and Indicators of Resiliency, Department of Civil Engineering, University of Delaware. Available online: www.ce.udel.edu\/UTC\/Presentation%2009\/MichelleOswald-AISIM5paper.pdf."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1111\/j.1467-9272.2006.00522.x","article-title":"Classic map revisited: The growth of Megalopolis","volume":"58","author":"Morrill","year":"2006","journal-title":"Prof. Geogr."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1111\/j.0040-747X.2004.t01-1-00297.x","article-title":"Freight, Gateways and Mega-Urban Regions: The Logistical Integration of the Bostwash Corridor","volume":"95","author":"Rodrigue","year":"2004","journal-title":"Tijdschrift voor Economische en Sociale Geografie"},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"344","DOI":"10.1111\/j.1468-2427.2007.00728.x","article-title":"Megalopolis 50 years on: The transformation of a city region","volume":"31","author":"Vicino","year":"2007","journal-title":"Int. J. Urban Reg. Res."},{"key":"ref_70","unstructured":"School of Design, University of Pennsylvania (2017, November 13). Reinventing megalopolis: The Northeast Megaregion. Available online: http:\/\/www.america2050.org\/2005\/11\/reinventing-megalopolis-the-no.html."},{"key":"ref_71","unstructured":"Kotkin, J., and Schill, M. (2018, January 03). A Map of America\u2019s Future: Where Growth Will Be over the Next Decade. Available online: https:\/\/www.forbes.com\/sites\/joelkotkin\/2013\/09\/04\/a-map-of-americas-future-where-growth-will-be-over-the-next-decade\/#67fd1dc3623d."},{"key":"ref_72","unstructured":"Morrill, R. (2017, November 13). Megalopolis and Its Rivals. Available online: http:\/\/www.newgeography.com\/content\/002788-megalopolis-and-its-rivals."},{"key":"ref_73","unstructured":"Hagler, Y. (2009). Defining US Megaregions, Regional Plan Association. America 2050 Report."},{"key":"ref_74","unstructured":"Ross, C.L., Yang, J., and Barringer, J. (2008). Megaregions: Literature Review of the Implications for U.S. Infrastructure Investment and Transportation Planning, Center for Quality Growth and Regional Development (CQGRD), Georgia Institute of Technology."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"178","DOI":"10.1080\/00330124.2011.583590","article-title":"Global metropolis: Assessing economic activity in urban centers based on nighttime satellite images","volume":"64","author":"Florida","year":"2012","journal-title":"Prof. Geogr."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"595","DOI":"10.1080\/01431160304982","article-title":"Validation of urban boundaries derived from global night-time satellite imagery","volume":"24","author":"Henderson","year":"2003","journal-title":"Int. J. Remote Sens."},{"key":"ref_77","doi-asserted-by":"crossref","unstructured":"Elvidge, C.D., Baugh, K.E., Zhizhin, M., and Hsu, F.C. (2013, January 13\u201316). Why VIIRS data are superior to DMSP for mapping nighttime lights. Proceedings of the Asia-Pacific Advanced Network 2013, Honolulu, HI, USA.","DOI":"10.7125\/APAN.35.7"},{"key":"ref_78","doi-asserted-by":"crossref","first-page":"358","DOI":"10.1080\/2150704X.2014.905728","article-title":"Evaluation of NPP-VIIRS night-time light composite data for extracting built-up urban areas","volume":"5","author":"Shi","year":"2014","journal-title":"Remote Sens. Lett."},{"key":"ref_79","unstructured":"Esch, T., Taubenb\u00f6ck, H., Felbier, A., Roth, A., M\u00fcller, A., and Dech, S. (2011, January 10\u201315). The path to mapping the global urban footprint using TanDEM-X data. In Proceeding of the ISRSE 2011, Sydney, Australia."},{"key":"ref_80","unstructured":"(2017, November 13). The Food and Agriculture Organization of the United Nations (FAO). Available online: http:\/\/www.fao.org\/geonetwork\/srv\/en\/main.home."},{"key":"ref_81","unstructured":"Latham, J., Cumani, R., Rosati, I., and Bloise, M. (2014). Global Land Cover Share (GLC-SHARE) Database Beta-Release Version 1.0-2014, FAO."},{"key":"ref_82","unstructured":"The European Space Agency (ESA) (2017, November 13). GlobCover 2009 (Global Land Cover Map). Available online: http:\/\/due.esrin.esa.int\/page_globcover.php."},{"key":"ref_83","unstructured":"National Oceanic and Atmospheric Administration (NOAA) (2017, November 13). Global Distribution and Density of Constructed Impervious Surfaces, Available online: https:\/\/www.ngdc.noaa.gov\/eog\/dmsp\/download_global_isa.html."},{"key":"ref_84","unstructured":"United States Census Bureau (2017, November 13). TIGER Products, Available online: https:\/\/www.census.gov\/geo\/maps-data\/data\/tiger.html."},{"key":"ref_85","unstructured":"CIESIN Center for International Earth Science Information Network\u2014CIESIN\u2014Columbia University (2016). Gridded Population of the World, Version 4 (GPWv4): Population Count, NASA Socioeconomic Data and Applications Center (SEDAC)."},{"key":"ref_86","unstructured":"CIESIN Center for International Earth Science Information Network\u2014CIESIN\u2014Columbia University (2016). Gridded Population of the World, Version 4 (GPWv4): Population Density, NASA Socioeconomic Data and Applications Center (SEDAC)."},{"key":"ref_87","unstructured":"United States Census Bureau (2017, November 13). American FactFinder AFF, Available online: http:\/\/factfinder.census.gov\/faces\/nav\/jsf\/pages\/index.xhtml."},{"key":"ref_88","doi-asserted-by":"crossref","first-page":"177","DOI":"10.1111\/1467-9671.00139","article-title":"Network density and the delimitation of urban areas","volume":"7","author":"Borruso","year":"2003","journal-title":"Trans. GIS"},{"key":"ref_89","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.rse.2016.10.002","article-title":"Updating urban extents with nighttime light imagery by using an object-based thresholding method","volume":"187","author":"Xie","year":"2016","journal-title":"Remote Sens. Environ."},{"key":"ref_90","first-page":"35","article-title":"Szenarien und Konzepte f\u00fcr die Entwicklung von Korridoren in den Niederlanden und in der Europ\u00e4ischen Union","volume":"62","author":"Priemus","year":"2004","journal-title":"Inf. Raumentwickl."},{"key":"ref_91","unstructured":"Zonneveld, W., and Trip, J.J. (2003). The corridor as an axis of economic development. Megacorridors in North West Europe. Investigating a New Transnational Planning Concept, Delft University Press. Housing and Urban Policy Studies 27."},{"key":"ref_92","unstructured":"DeNavas-Watt, C., Proctor, B.D., and Smith, J.C. (2011). Income, Poverty, and Health Insurance Coverage in the United States, U.S. Census Bureau, Current Population Reports 2010."},{"key":"ref_93","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1177\/0969776412441191","article-title":"From places to flows? Planning for the new \u2018regional world\u2019 in Germany","volume":"21","author":"Harrison","year":"2014","journal-title":"Eur. Urban Reg. Stud."},{"key":"ref_94","doi-asserted-by":"crossref","unstructured":"Nelson, G.D., and Rae, A. (2016). An Economic Geography of the United States: From Commutes to Megaregions. PLoS ONE, 11.","DOI":"10.1371\/journal.pone.0166083"},{"key":"ref_95","doi-asserted-by":"crossref","first-page":"2371","DOI":"10.1080\/00420980500379503","article-title":"An appraisal of the use of airline data in assessing the world city network: A research note on data","volume":"42","author":"Derudder","year":"2005","journal-title":"Urban Stud."},{"key":"ref_96","first-page":"727","article-title":"Mobile landscapes: Using location data from cell phones for urban analysis","volume":"33","author":"Ratti","year":"2006","journal-title":"Environ. Plan. B Urban Anal. City Sci."},{"key":"ref_97","doi-asserted-by":"crossref","first-page":"1743","DOI":"10.3390\/rs3081743","article-title":"Collective sensing: Integrating geospatial technologies to understand urban systems\u2014An overview","volume":"3","author":"Blaschke","year":"2011","journal-title":"Remote Sens."},{"key":"ref_98","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1109\/TITS.2010.2074196","article-title":"Real-Time Urban Monitoring Using Cell Phones: A Case Study in Rome","volume":"12","author":"Calabrese","year":"2011","journal-title":"IEEE Trans. Intell. Trans. Syst."},{"key":"ref_99","unstructured":"Dicken, P. (2014). Global Shift: Mapping and Changing Contours of the World Economy, Sage Publications Ltd."},{"key":"ref_100","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1016\/j.rse.2016.03.001","article-title":"How good is the map? A multi-scale cross-comparison framework for global settlement layers: Evidence from Central Europe","volume":"178","author":"Klotz","year":"2016","journal-title":"Remote Sens. Environ."},{"key":"ref_101","doi-asserted-by":"crossref","first-page":"12419","DOI":"10.3390\/rs70912419","article-title":"Mapping urban areas with integration of DMSP\/OLS nighttime light and MODIS data using machine learning techniques","volume":"7","author":"Jing","year":"2015","journal-title":"Remote Sens."},{"key":"ref_102","doi-asserted-by":"crossref","first-page":"498","DOI":"10.1080\/13658816.2014.988715","article-title":"Zipf\u2019s law for all the natural cities around the world","volume":"29","author":"Jiang","year":"2015","journal-title":"Int. J. Geogr. Inf. Sci."},{"key":"ref_103","unstructured":"(2017, November 13). World Bank. Available online: http:\/\/data.worldbank.org\/indicator\/EN.POP.DNST."},{"key":"ref_104","doi-asserted-by":"crossref","first-page":"77","DOI":"10.5565\/rev\/dag.968","article-title":"The Liquid City of Megalopolis","volume":"55","author":"Short","year":"2009","journal-title":"Documents d'An\u00e0lisi Geogr\u00e0fica"},{"key":"ref_105","unstructured":"(2017, November 13). INSPIRE\u2014Infrastructure for Spatial Information in Europe. Available online: http:\/\/inspire.ec.europa.eu."},{"key":"ref_106","doi-asserted-by":"crossref","unstructured":"Wei, C., Blaschke, T., Kazakopoulos, P., Taubenb\u00f6ck, H., and Tiede, D. (2017). Is Spatial Resolution Critical in Urbanization Velocity Analysis? Investigations in the Pearl River Delta. Remote Sens., 9.","DOI":"10.3390\/rs9010080"}],"container-title":["ISPRS International Journal of Geo-Information"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2220-9964\/7\/1\/15\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T14:50:05Z","timestamp":1760194205000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2220-9964\/7\/1\/15"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,1,4]]},"references-count":106,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2018,1]]}},"alternative-id":["ijgi7010015"],"URL":"https:\/\/doi.org\/10.3390\/ijgi7010015","relation":{},"ISSN":["2220-9964"],"issn-type":[{"value":"2220-9964","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,1,4]]}}}