2012
DOI: 10.3390/ijgi1030294
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Geoprocessing Journey-to-Work Data: Delineating Commuting Regions in Dalarna, Sweden

Abstract: Delineation of commuting regions has always been based on statistical units, often municipalities or wards. However, using these units has certain disadvantages as their land areas differ considerably. Much information is lost in the larger spatial base units and distortions in self-containment values, the main criterion in rule-based delineation procedures, occur. Alternatively, one can start from relatively small standard size units such as hexagons. In this way, much greater detail in spatial patterns is ob… Show more

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Cited by 11 publications
(10 citation statements)
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“…These rules force the amalgamation of the starting BTUs to form LMAs based on local maxima and mergers are determined without reconsideration of previous decisions. An example is the hierarchical aggregation procedure known as Intramax (Masser & Brown, 1975; see Landré, 2012, for an extensive list of applications). In this family of methods, mergers at each step are locally optimalthe pair of groups of BTUs that maximize a form of interaction index is merged.…”
Section: Literature Reviewmentioning
confidence: 99%
“…These rules force the amalgamation of the starting BTUs to form LMAs based on local maxima and mergers are determined without reconsideration of previous decisions. An example is the hierarchical aggregation procedure known as Intramax (Masser & Brown, 1975; see Landré, 2012, for an extensive list of applications). In this family of methods, mergers at each step are locally optimalthe pair of groups of BTUs that maximize a form of interaction index is merged.…”
Section: Literature Reviewmentioning
confidence: 99%
“…All approaches have their pros and cons (see for example, Coombes, 2010;Mitchell and Watts, 2010;Landré, 2012;Landré and H�kansson, 2013). Clustering methods (numerical taxonomy methods) are based on a selected criterion, which is gradually decreased until all the resulting regions meet it (Watts, 2009).…”
Section: Functional Regions and Methods For Their Definitionmentioning
confidence: 99%
“…The Intramax algorithm identifies functional regions through the hierarchical aggregation of basic spatial units, with the objective of forming homogeneous clusters (Landré, 2012). The interaction measure is used as an objective function in the hierarchical clustering algorithm and it can be expressed by the formula:…”
Section: The Intramax Approachmentioning
confidence: 99%
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