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New geometric design consistency model based on operating speed profiles for road safety evaluation

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New geometric design consistency model based on operating speed profiles for road safety evaluation

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dc.contributor.author Camacho Torregrosa, Francisco Javier es_ES
dc.contributor.author Pérez Zuriaga, Ana María es_ES
dc.contributor.author Campoy Ungria, Jose Manuel es_ES
dc.contributor.author García García, Alfredo es_ES
dc.date.accessioned 2014-09-17T12:17:26Z
dc.date.available 2014-09-17T12:17:26Z
dc.date.issued 2013-12
dc.identifier.issn 0001-4575
dc.identifier.uri http://hdl.handle.net/10251/39695
dc.description.abstract [EN] To assist in the on-going effort to reduce road fatalities as much as possible, this paper presents a new methodology to evaluate road safety in both the design and redesign stages of two-lane rural highways. This methodology is based on the analysis of road geometric design consistency, a value which will be a surrogate measure of the safety level of the two-lane rural road segment. The consistency model presented in this paper is based on the consideration of continuous operating speed profiles. The models used for their construction were obtained by using an innovative GPS-data collection method that is based on continuous operating speed profiles recorded from individual drivers. This new methodology allowed the researchers to observe the actual behavior of drivers and to develop more accurate operating speed models than was previously possible with spot-speed data collection, thereby enabling a more accurate approximation to the real phenomenon and thus a better consistency measurement. Operating speed profiles were built for 33 Spanish two-lane rural road segments, and several consistency measurements based on the global and local operating speed were checked. The final consistency model takes into account not only the global dispersion of the operating speed, but also some indexes that consider both local speed decelerations and speeds over posted speeds as well. For the development of the consistency model, the crash frequency for each study site was considered, which allowed estimating the number of crashes on a road segment by means of the calculation of its geometric design consistency. Consequently, the presented consistency evaluation method is a promising innovative tool that can be used as a surrogate measure to estimate the safety of a road segment. es_ES
dc.description.sponsorship The authors would like to thank the Center for Studies and Experimentation of Public Works (CEDEX) of the Spanish Ministry of PublicWorks for partially subsidizing this research.We also wish to thank the Infrastructure and Transportation Department of the General Directorate of Public Works of the Valencian Government, to the Valencian Provincial Council, and to the Ministry of the Interior, especially the General Directorate of Traffic of Spain, for their cooperation in field data gathering.
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Accident Analysis and Prevention es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Road safety es_ES
dc.subject Surrogate measures es_ES
dc.subject Design consistency es_ES
dc.subject Operating speed es_ES
dc.subject Crash estimation es_ES
dc.subject.classification INGENIERIA E INFRAESTRUCTURA DE LOS TRANSPORTES es_ES
dc.subject.classification INGENIERIA DEL TERRENO es_ES
dc.title New geometric design consistency model based on operating speed profiles for road safety evaluation es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.aap.2012.10.001
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería e Infraestructura de los Transportes - Departament d'Enginyeria i Infraestructura dels Transports es_ES
dc.description.bibliographicCitation Camacho Torregrosa, FJ.; Pérez Zuriaga, AM.; Campoy Ungria, JM.; García García, A. (2013). New geometric design consistency model based on operating speed profiles for road safety evaluation. Accident Analysis and Prevention. 61:33-42. doi:10.1016/j.aap.2012.10.001 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.aap.2012.10.001 es_ES
dc.description.upvformatpinicio 33 es_ES
dc.description.upvformatpfin 42 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 61 es_ES
dc.relation.senia 251701
dc.identifier.pmid 23176754


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