<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1405-7743</journal-id>
<journal-title><![CDATA[Ingeniería, investigación y tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. invest. y tecnol.]]></abbrev-journal-title>
<issn>1405-7743</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-77432022000300101</article-id>
<article-id pub-id-type="doi">10.22201/fi.25940732e.2022.23.3.017</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Analysis of railway systems applying complex networks: The case of Mexican Railway System]]></article-title>
<article-title xml:lang="es"><![CDATA[Análisis de sistemas ferroviarios empleando redes complejas: El caso del Sistema Ferroviario Mexicano]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-González]]></surname>
<given-names><![CDATA[Salvador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-De La Mota]]></surname>
<given-names><![CDATA[Idalia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Tecnológico Nacional de México Instituto Tecnológico de Celaya ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>23</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432022000300101&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432022000300101&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432022000300101&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: At the 2014 International Transport Forum, it was established that "ports, border crossings and key industrial centers in Mexico are well connected". Under this premise, the Mexican rail network was analyzed applying the complex networks approach; through the corresponding performance measures, the relevance of the stations was determined; then the robustness against targeted attacks and against random failures was analyzed. The nodes degree follows an exponential probability distribution; it was identified a set of nodes that controls 19 % of the shortest routes; two cities are included in the set; five nodes are closest to the rest of nodes; the same two cities are also included in the set. Through the closeness centrality we observed that in the Mexican network the distance between the stations shows low variability. The network is sensitive to attacks directed to the nodes with the highest betweenness value; the number of components increases faster compared to random failures. This work is of interest to those responsible for the management and planning of transport systems.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En el Foro Internacional de Transporte 2014, se estableció que &#8220;los puertos, cruces fronterizos y centros industriales clave en México están bien conectados&#8221;. Bajo esta premisa se analizó la red ferroviaria mexicana aplicando el enfoque de redes complejas; a través de las correspondientes medidas de desempeño se determina la relevancia o centralidad de las estaciones; posteriormente se analiza la robustez frente a ataques dirigidos y frente a fallas aleatorias. Se encontraron datos interesantes como la identificación de un grupo de nodos que contienen 19 % de las rutas más cortas, entre estos nodos destacan dos ciudades importantes, la mayoría se encuentran en el centro de México, aunque destaca uno localizado en el noroeste del país. También se observa que en la red mexicana la distancia entre las estaciones presenta poca variación. Este trabajo es de interés para los responsables de la administración y planificación de sistemas de transporte al dar una visión más completa al analizar la estructura de una red ferroviaria.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Complex networks]]></kwd>
<kwd lng="en"><![CDATA[centrality]]></kwd>
<kwd lng="en"><![CDATA[robustness]]></kwd>
<kwd lng="en"><![CDATA[railway systems]]></kwd>
<kwd lng="en"><![CDATA[transport systems]]></kwd>
<kwd lng="es"><![CDATA[Redes complejas]]></kwd>
<kwd lng="es"><![CDATA[centralidad]]></kwd>
<kwd lng="es"><![CDATA[robustez]]></kwd>
<kwd lng="es"><![CDATA[sistemas ferroviarios]]></kwd>
<kwd lng="es"><![CDATA[sistemas de transporte]]></kwd>
</kwd-group>
</article-meta>
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