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impedance - [network analysis] A measure of the amount of resistance, or cost, required to traverse a path in a network, or to move from one element in the network to another. Resistance may be a measure of travel distance, time, speed of travel multiplied by distance, and so on. Higher impedance values indicate more resistance to movement, and a value of zero indicates no resistance. An optimum path in a network is the path of lowest impedance, also called the least-cost path.
[Category=Geospatial ]
Source: esri, 17 May 2012 09:48:51, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation
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