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Spatial analysis of geometric design consistency and road sight distance
| Content Provider | Scilit |
|---|---|
| Author | Castro, Maria Santos-Berbel, César De |
| Copyright Year | 2015 |
| Description | 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. |
| Related Links | https://core.ac.uk/download/pdf/33177231.pdf http://oa.upm.es/37444/1/INVE_MEM_2015_197540.pdf |
| Ending Page | 2074 |
| Page Count | 14 |
| Starting Page | 2061 |
| ISSN | 13658816 |
| e-ISSN | 13623087 |
| DOI | 10.1080/13658816.2015.1037304 |
| Journal | International Journal of Geographical Information Science |
| Issue Number | 12 |
| Volume Number | 29 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2015-04-29 |
| Access Restriction | Open |
| Subject Keyword | Journal: International Journal of Geographical Information Science Transportation Geographic Information Systems Spatial Analysis Visibility Analysis Digital Elevation Or Terrain Models Global Positioning |
| Content Type | Text |
| Resource Type | Article |
| Subject | Geography, Planning and Development Library and Information Sciences Information Systems |
