ISPRS Int. J. Geo-Inf., Volume 7, Issue 1 (January 2018) – 37 articles
Cover Story (view full-size image): Are we in Boswash yet? The extent of urban areas is commonly defined through administrative boundaries. The actual built-up area, urban catchment or economic linkage is, however, not adequately represented through artificial, fixed boundaries. In order to spatially delimit a very large urban area—the Boston to Washington (Boswash) urban corridor—we use multi-source geodata based on a grid and not on administrative units. Using thresholds on the input data, we construct Boswash as varying connected territorial spaces, thus overcoming a dichotomous classification in favor of a probability-based differentiation. The approach can be modified (e.g., through different input layers or weighting) without changing the underlying idea, i.e., the probability of an area being part of a region such as Boswash is flexible. View this paper
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