Effects of raster terrain representation on GIS shortest path analysis

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dc.contributor.authorMedrano, Fernando Antonio
dc.creator.orcidhttps://orcid.org/0000-0002-5913-632Xen_US
dc.creator.orcidhttps://orcid.org/0000-0002-5913-632X
dc.creator.orcidhttps://orcid.org/0000-0002-5913-632Xhttps://orcid.org/0000-0002-5913-632X
dc.creator.orcidhttps://orcid.org/0000-0002-5913-632X
dc.creator.orcidhttps://orcid.org/0000-0002-5913-632X
dc.date.accessioned2021-06-21T17:36:42Z
dc.date.available2021-06-21T17:36:42Z
dc.date.issued2021-04-15
dc.description.abstractSpatial analysis extracts meaning and insights from spatially referenced data, where the results are highly dependent on the quality of the data used and the manipulations on the data when preparing it for analysis. Users should understand the impacts that data representations may have on their results in order to prevent distortions in their outcomes. We study the consequences of two common data preparations when locating a linear feature performing shortest path analysis on raster terrain data: 1) the connectivity of the network generated by connecting raster cells to their neighbors, and 2) the range of the attribute scale for assigning costs. Such analysis is commonly used to locate transmission lines, where the results could have major implications on project cost and its environmental impact. Experiments in solving biobjective shortest paths show that results are highly dependent on the parameters of the data representations, with exceedingly variable results based on the choices made in reclassifying attributes and generating networks from the raster. Based on these outcomes, we outline recommendations for ensuring geographic information system (GIS) data representations maintain analysis results that are accurate and unbiased.en_US
dc.description.abstractSpatial analysis extracts meaning and insights from spatially referenced data, where the results are highly dependent on the quality of the data used and the manipulations on the data when preparing it for analysis. Users should understand the impacts that data representations may have on their results in order to prevent distortions in their outcomes. We study the consequences of two common data preparations when locating a linear feature performing shortest path analysis on raster terrain data: 1) the connectivity of the network generated by connecting raster cells to their neighbors, and 2) the range of the attribute scale for assigning costs. Such analysis is commonly used to locate transmission lines, where the results could have major implications on project cost and its environmental impact. Experiments in solving biobjective shortest paths show that results are highly dependent on the parameters of the data representations, with exceedingly variable results based on the choices made in reclassifying attributes and generating networks from the raster. Based on these outcomes, we outline recommendations for ensuring geographic information system (GIS) data representations maintain analysis results that are accurate and unbiased.
dc.identifier.citationMedrano FA (2021) Effects of raster terrain representation on GIS shortest path analysis. PLoS ONE 16(4): e0250106. https://doi. org/10.1371/journal.pone.0250106en_US
dc.identifier.citationMedrano FA (2021) Effects of raster terrain representation on GIS shortest path analysis. PLoS ONE 16(4): e0250106. https://doi. org/10.1371/journal.pone.0250106
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0250106
dc.identifier.urihttps://hdl.handle.net/1969.6/89691
dc.language.isoen_USen_US
dc.language.isoen_US
dc.publisherPLOS ONEen_US
dc.publisherPLOS ONE
dc.rightsAttribution 4.0 International*
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectmulti-criteria decision makingen_US
dc.subjectgeographic information scienceen_US
dc.subjectspatial optimizationen_US
dc.subjecttransmission linesen_US
dc.subjectdata analysisen_US
dc.subjectnetwork analysisen_US
dc.subjectmulti-criteria decision making
dc.subjectgeographic information science
dc.subjectspatial optimization
dc.subjecttransmission lines
dc.subjectdata analysis
dc.subjectnetwork analysis
dc.titleEffects of raster terrain representation on GIS shortest path analysisen_US
dc.titleEffects of raster terrain representation on GIS shortest path analysis
dc.typeArticleen_US
dc.typeArticle

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