Difference between reported crash me and speed disturbances in urban signalized intersecons: a case study in Fortaleza, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
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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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 |
_version_ |
1813028763121745920 |