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<title>Differences in road-traffic crash rates during construction and non-contruction times on arterial streets: A comparative statistical analysis</title>
<creator>Mangones, Sonia C.</creator>
<creator>García, Jaime Alejandro</creator>
<creator>Holguín, David Orlando</creator>
<creator>Orejuela, Danny Alexander</creator>
<subject>Seguridad vial</subject>
<subject>Accidentes</subject>
<subject>Road safety</subject>
<subject>Accidents</subject>
<description>Trabajo presentado en: R-Evolucionando el transporte, XIV Congreso de Ingeniería del Transporte (CIT 2021), realizado en modalidad online los días 6, 7 y 8 de julio de 2021, organizado por la Universidad de Burgos</description>
<description>Different studies over the past 30 years have shown an increase in the rates of crash&#xd;
frequencies during road construction time, but this trend is not reported as valid for all cities.&#xd;
A question is raised whether higher rates are observed in arterial roads in Bogotá, Colombia.&#xd;
It is possible to apply descriptive statistics and hypothesis tests to prove them and identify&#xd;
the variables that affect the accident rate during road construction. Our research aims to&#xd;
verify the incidence of high impact construction zones, in the crash rate at the arterial road&#xd;
network of Bogotá. We use descriptive statistics and inferential statistical tests to analyze&#xd;
whether crash rates are statistically higher during construction time than during nonconstruction&#xd;
time at the same highway sections considering different crash severities&#xd;
(damages-only, injuries, and fatalities). Our database considered 871 road links that make&#xd;
up 68 artery corridors for the city of Bogota, and 5.450 road construction zones, from 2015&#xd;
to 2019. An analysis by corridor was performed, in which we identified seven patterns in the&#xd;
behavior of accident rates influenced by the presence of a road intervention in the corridor.&#xd;
Within the patterns, it was evident that some corridors reported an increase in the accident&#xd;
rate during the time of construction, while others showed a decrease in the same comparison.&#xd;
We used the Wilcoxon test to establish the statistical significance of our conclusions, with a&#xd;
significance level of 10%. We also found that those construction interventions that do not&#xd;
require excavation of more than half a meter there was a decrease in the accident severity,&#xd;
as damages-only crashes, diminished during the construction time, while for those&#xd;
interventions that include excavation greater than half a meter there was an increase in&#xd;
overall accident rates during construction time.</description>
<date>2022-09-22</date>
<date>2022-09-22</date>
<date>2021-07</date>
<type>info:eu-repo/semantics/conferenceObject</type>
<identifier>978-84-18465-12-3</identifier>
<identifier>http://hdl.handle.net/10259/7034</identifier>
<identifier>10.36443/10259/7034</identifier>
<language>eng</language>
<relation>R-Evolucionando el transporte</relation>
<relation>http://hdl.handle.net/10259/6490</relation>
<relation>https://doi.org/10.36443/9788418465123</relation>
<rights>info:eu-repo/semantics/openAccess</rights>
<publisher>Universidad de Burgos. Servicio de Publicaciones e Imagen Institucional</publisher>
</thesis></metadata></record></GetRecord></OAI-PMH>