Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10071/15008 |
Resumo: | This paper analyses the occurrence of temporary speed restrictions in railway infrastructure associated with railway track geometry degradation. A negative binomial regression model is put forward to estimate the expected number of temporary speed restrictions, controlling for the main quality indicators of railway track geometry degradation and for the maintenance and renewal actions/decisions. The prediction of temporary speed restrictions provides a quantitative way to support the assessment of unavailability costs to railway users. A case study on the Lisbon–Oporto Portuguese line is explored, comparing three statistical models: the Poisson, the ‘over-dispersed’ Poisson and the proposed negative binomial regression. Main findings suggest that the main quality indicators for railway track geometry degradation are statistically significant variables, apart from the maintenance and renewal actions. Finally, a discussion on the impacts of the unavailability costs associated with temporary speed restrictions is also provided in a regulated railway context. |
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Assessing temporary speed restrictions and associated unavailability costs in railway infrastructureTemporary speed restrictionsRailway maintenanceStatistical modelingNegative binomial regressionUnavailability costsThis paper analyses the occurrence of temporary speed restrictions in railway infrastructure associated with railway track geometry degradation. A negative binomial regression model is put forward to estimate the expected number of temporary speed restrictions, controlling for the main quality indicators of railway track geometry degradation and for the maintenance and renewal actions/decisions. The prediction of temporary speed restrictions provides a quantitative way to support the assessment of unavailability costs to railway users. A case study on the Lisbon–Oporto Portuguese line is explored, comparing three statistical models: the Poisson, the ‘over-dispersed’ Poisson and the proposed negative binomial regression. Main findings suggest that the main quality indicators for railway track geometry degradation are statistically significant variables, apart from the maintenance and renewal actions. Finally, a discussion on the impacts of the unavailability costs associated with temporary speed restrictions is also provided in a regulated railway context.Springer2018-01-22T14:48:49Z2018-01-01T00:00:00Z20182019-03-07T15:37:56Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/15008eng1735-052210.1007/s40999-016-0121-3Andrade, A. R.Teixeira, P. F.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:36:17Zoai:repositorio.iscte-iul.pt:10071/15008Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:16:28.621211Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure |
title |
Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure |
spellingShingle |
Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure Andrade, A. R. Temporary speed restrictions Railway maintenance Statistical modeling Negative binomial regression Unavailability costs |
title_short |
Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure |
title_full |
Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure |
title_fullStr |
Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure |
title_full_unstemmed |
Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure |
title_sort |
Assessing temporary speed restrictions and associated unavailability costs in railway infrastructure |
author |
Andrade, A. R. |
author_facet |
Andrade, A. R. Teixeira, P. F. |
author_role |
author |
author2 |
Teixeira, P. F. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Andrade, A. R. Teixeira, P. F. |
dc.subject.por.fl_str_mv |
Temporary speed restrictions Railway maintenance Statistical modeling Negative binomial regression Unavailability costs |
topic |
Temporary speed restrictions Railway maintenance Statistical modeling Negative binomial regression Unavailability costs |
description |
This paper analyses the occurrence of temporary speed restrictions in railway infrastructure associated with railway track geometry degradation. A negative binomial regression model is put forward to estimate the expected number of temporary speed restrictions, controlling for the main quality indicators of railway track geometry degradation and for the maintenance and renewal actions/decisions. The prediction of temporary speed restrictions provides a quantitative way to support the assessment of unavailability costs to railway users. A case study on the Lisbon–Oporto Portuguese line is explored, comparing three statistical models: the Poisson, the ‘over-dispersed’ Poisson and the proposed negative binomial regression. Main findings suggest that the main quality indicators for railway track geometry degradation are statistically significant variables, apart from the maintenance and renewal actions. Finally, a discussion on the impacts of the unavailability costs associated with temporary speed restrictions is also provided in a regulated railway context. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-22T14:48:49Z 2018-01-01T00:00:00Z 2018 2019-03-07T15:37:56Z |
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 |
http://hdl.handle.net/10071/15008 |
url |
http://hdl.handle.net/10071/15008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1735-0522 10.1007/s40999-016-0121-3 |
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.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134723391356928 |