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		<issn>2179-4820</issn>
		<citationkey>JorgeRossBaceSant:2017:ToAnGe</citationkey>
		<title>GIS4Graph: a tool for analyzing (geo)graphs applied to study efficiency in a street network</title>
		<format>Pendrive, On-line.</format>
		<year>2017</year>
		<secondarytype>PRE CN</secondarytype>
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		<author>Jorge, Aurelienne A. S.,</author>
		<author>Rossato, Marcio,</author>
		<author>Bacelar, Roberta B.,</author>
		<author>Santos, Leonardo B. L.,</author>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Via Vale Sistemas</affiliation>
		<affiliation>Faculdade Anhanguera</affiliation>
		<affiliation>Centro Nacional de Monitoramento e Alerta de Desastre Naturais (CEMADEN)</affiliation>
		<editor>Davis Jr., Clodoveu A. (UFMG),</editor>
		<editor>Queiroz, Gilberto R. de (INPE),</editor>
		<e-mailaddress>lubia@dpi.inpe.br</e-mailaddress>
		<conferencename>Simpósio Brasileiro de Geoinformática, 18 (GEOINFO)</conferencename>
		<conferencelocation>Salvador</conferencelocation>
		<date>04-06 dez. 2017</date>
		<publisher>Instituto Nacional de Pesquisas Espaciais (INPE)</publisher>
		<publisheraddress>São José dos Campos</publisheraddress>
		<pages>246-251</pages>
		<booktitle>Anais</booktitle>
		<tertiarytype>Short papers</tertiarytype>
		<transferableflag>1</transferableflag>
		<abstract>Geographic networks are everywhere, as rivers, power grids and street networks. Computational and mathematical tools for traditional analysis of graphs and recent studies on complex networks have been incorporating the geographic component. This article presents a general tool, in development process, for visualizing geographic networks: the GIS4Graph tool. An application is presented in the analysis of efficiency in a street network, based on the straightness centrality index. The case study is done using the OpenStreetMap data from the city of Lorena/SP. The results are showed visually in a map or graph, highlighting the main streets that contribute to the citys efficiency in terms of straight displacement.</abstract>
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