Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil

Detalhes bibliográficos
Autor(a) principal: Sobreira, Lucas Tito Pereira
Data de Publicação: 2020
Outros Autores: Rezende, Gabriela Gomes Soares, Cunto, Flávio José Craveiro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
Texto Completo: http://www.repositorio.ufc.br/handle/riufc/58332
Resumo: The advent of new technologies for monitoring and controlling traffic allows the development of more robust road safety studies, based on the collec%on of disaggregated traffic data at intervals of 1 to 15 minutes or even in real %me. However, in order to relate the crashes to their precursor condi%ons, applying this type of data requires a be8er knowledge on the accuracy of crash reported %mes. This work aims to present an analysis between the reported %mes of crashes and disturbances in the traffic flow condi %ons in urban signalized intersec%ons in Fortaleza, Brazil. Vehicle flow disturbances were detected from speed oscilla%ons by using an algorithm based on comparing speeds between “typical” and “crash” condi%ons and by valida%ng the detec%ons with visual analysis. The results of inves%ga%ng 291 crashes showed an average difference of 20 minutes (sd = 23 min) between the reported %me of crash and the occurrence of the speed disturbance. This is an indica%on that, while developing road safety disaggregated analyses, one should examine the database accuracy regarding the crash reported %me.
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spelling Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, BrazilDiferença entre horário reportado de acidentes de trânsito e perturbações na velocidade em interseções semaforizadas em Fortaleza, BrasilSegurança viáriaPerturbação na velocidadeHorário de reportagem de acidentesEstimativa do horário de acidentesThe advent of new technologies for monitoring and controlling traffic allows the development of more robust road safety studies, based on the collec%on of disaggregated traffic data at intervals of 1 to 15 minutes or even in real %me. However, in order to relate the crashes to their precursor condi%ons, applying this type of data requires a be8er knowledge on the accuracy of crash reported %mes. This work aims to present an analysis between the reported %mes of crashes and disturbances in the traffic flow condi %ons in urban signalized intersec%ons in Fortaleza, Brazil. Vehicle flow disturbances were detected from speed oscilla%ons by using an algorithm based on comparing speeds between “typical” and “crash” condi%ons and by valida%ng the detec%ons with visual analysis. The results of inves%ga%ng 291 crashes showed an average difference of 20 minutes (sd = 23 min) between the reported %me of crash and the occurrence of the speed disturbance. This is an indica%on that, while developing road safety disaggregated analyses, one should examine the database accuracy regarding the crash reported %me.O advento de novas tecnologias de monitoramento e controle de tráfego permite o desenvolvimento de estudos mais robustos de segurança viária a partir da obtenção de dados de tráfego desagregados em intervalos de 1 a 15 minutos ou até em tempo real. Entretanto, visando relacionar os acidentes às suas condições precursoras, a aplicação desse tipo de dado demanda um melhor conhecimento sobre a precisão do horário de reportagem dos acidentes. Este trabalho tem como objetivo apresentar uma análise entre horários reportados dos acidentes e perturbações nas condições de fluxo em interseções semaforizadas em Fortaleza, Brasil. As perturbações na corrente de tráfego foram detectadas a partir de oscilações na velocidade com a aplicação de algoritmo que compara as velocidades em condições "típicas" e "com acidentes" e com a validação visual das detecções. A avaliação de 291 acidentes mostrou uma diferença média de 20 minutos (dp = 23 min) entre o horário de reportagem do acidente e o momento da detecção da perturbação na velocidade. Esse achado indica a importância da investigação da precisão dos horários de reportagem dos acidentes de trânsito, principalmente ao desenvolver estudos de segurança viária em escala temporal desagregada.2021-05-12T13:33:19Z2021-05-12T13:33:19Z2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSOBREIRA, Lucas Tito Pereira; REZENDE, Gabriela Gomes Soares; CUNTO, Flávio José Craveiro. Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil. Transportes, São Paulo-SP, v. 28, n. 5, p. 1-15, 2020.2237-1346http://www.repositorio.ufc.br/handle/riufc/58332Sobreira, Lucas Tito PereiraRezende, Gabriela Gomes SoaresCunto, Flávio José Craveiroengreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFCinfo:eu-repo/semantics/openAccess2022-05-06T13:49:35Zoai:repositorio.ufc.br:riufc/58332Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T18:20:30.810253Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
Diferença entre horário reportado de acidentes de trânsito e perturbações na velocidade em interseções semaforizadas em Fortaleza, Brasil
title Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
spellingShingle Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
Sobreira, Lucas Tito Pereira
Segurança viária
Perturbação na velocidade
Horário de reportagem de acidentes
Estimativa do horário de acidentes
title_short Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
title_full Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
title_fullStr Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
title_full_unstemmed Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
title_sort Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
author Sobreira, Lucas Tito Pereira
author_facet Sobreira, Lucas Tito Pereira
Rezende, Gabriela Gomes Soares
Cunto, Flávio José Craveiro
author_role author
author2 Rezende, Gabriela Gomes Soares
Cunto, Flávio José Craveiro
author2_role author
author
dc.contributor.author.fl_str_mv Sobreira, Lucas Tito Pereira
Rezende, Gabriela Gomes Soares
Cunto, Flávio José Craveiro
dc.subject.por.fl_str_mv Segurança viária
Perturbação na velocidade
Horário de reportagem de acidentes
Estimativa do horário de acidentes
topic Segurança viária
Perturbação na velocidade
Horário de reportagem de acidentes
Estimativa do horário de acidentes
description The advent of new technologies for monitoring and controlling traffic allows the development of more robust road safety studies, based on the collec%on of disaggregated traffic data at intervals of 1 to 15 minutes or even in real %me. However, in order to relate the crashes to their precursor condi%ons, applying this type of data requires a be8er knowledge on the accuracy of crash reported %mes. This work aims to present an analysis between the reported %mes of crashes and disturbances in the traffic flow condi %ons in urban signalized intersec%ons in Fortaleza, Brazil. Vehicle flow disturbances were detected from speed oscilla%ons by using an algorithm based on comparing speeds between “typical” and “crash” condi%ons and by valida%ng the detec%ons with visual analysis. The results of inves%ga%ng 291 crashes showed an average difference of 20 minutes (sd = 23 min) between the reported %me of crash and the occurrence of the speed disturbance. This is an indica%on that, while developing road safety disaggregated analyses, one should examine the database accuracy regarding the crash reported %me.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021-05-12T13:33:19Z
2021-05-12T13:33:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv SOBREIRA, Lucas Tito Pereira; REZENDE, Gabriela Gomes Soares; CUNTO, Flávio José Craveiro. Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil. Transportes, São Paulo-SP, v. 28, n. 5, p. 1-15, 2020.
2237-1346
http://www.repositorio.ufc.br/handle/riufc/58332
identifier_str_mv SOBREIRA, Lucas Tito Pereira; REZENDE, Gabriela Gomes Soares; CUNTO, Flávio José Craveiro. Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil. Transportes, São Paulo-SP, v. 28, n. 5, p. 1-15, 2020.
2237-1346
url http://www.repositorio.ufc.br/handle/riufc/58332
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
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