Spatial analysis of geometric design consistency and road sight distance

Castro Malpica, María and Santos Berbel, César de (2015). Spatial analysis of geometric design consistency and road sight distance. "International Journal of Geographical Information Science" ; pp. 1-14. ISSN 1362-3087. https://doi.org/10.1080/13658816.2015.1037304.

Description

Title: Spatial analysis of geometric design consistency and road sight distance
Author/s:
  • Castro Malpica, María
  • Santos Berbel, César de
Item Type: Article
Título de Revista/Publicación: International Journal of Geographical Information Science
Date: 29 April 2015
Subjects:
Freetext Keywords: geographic information systems, spatial analysis, visibility analysis, digital elevation or terrain models, global positioning
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ingeniería Civil: Transporte y Territorio
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview

Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTRA2011-25479UnspecifiedUnspecifiedConvocatoria de 2011 de Proyectos de Investigación Fundamental no Orientada del Plan Nacional de I+D+i 2008-2011

More information

Item ID: 37444
DC Identifier: http://oa.upm.es/37444/
OAI Identifier: oai:oa.upm.es:37444
DOI: 10.1080/13658816.2015.1037304
Official URL: http://www.tandfonline.com/doi/abs/10.1080/13658816.2015.1037304
Deposited by: Memoria Investigacion
Deposited on: 03 Sep 2015 12:24
Last Modified: 29 Apr 2016 22:56
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM