Memorias de investigación
Artículos en revistas:
Spatial analysis of geometric design consistency and road sight distance
Año:2015
Áreas de investigación
  • Transporte por carretera,
  • Carreteras
Datos
Descripción
Because of the high number of crashes occurring on highways, it is necessary to intensify the search for new tools that help in understanding their causes. This research explores the use of a geographic information system (GIS) for an integrated analysis, taking into account two accident-related factors: design consistency (DC) (based on vehicle speed) and available sight distance (ASD) (based on visibility). Both factors require specific GIS software add-ins, which are explained. Digital terrain models (DTMs), vehicle paths, road centerlines, a speed prediction model, and crash data are integrated in the GIS. The usefulness of this approach has been assessed through a study of more than 500 crashes. From a regularly spaced grid, the terrain (bare ground) has been modeled through a triangulated irregular network (TIN). The length of the roads analyzed is greater than 100 km. Results have shown that DC and ASD could be related to crashes in approximately 4% of cases. In order to illustrate the potential of GIS, two crashes are fully analyzed: a car rollover after running off road on the right side and a rear-end collision of two moving vehicles. Although this procedure uses two software add-ins that are available only for ArcGIS, the study gives a practical demonstration of the suitability of GIS for conducting integrated studies of road safety.
Internacional
Si
JCR del ISI
Si
Título de la revista
International Journal of Geographical Information Science
ISSN
1362-3087
Factor de impacto JCR
Información de impacto
Volumen
DOI
10.1080/13658816.2015.1037304
Número de revista
Desde la página
1
Hasta la página
16
Mes
SIN MES
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Ingeniería Civil: Transporte y Territorio