Motorway crash analysis using GIS: a case study of St Marys Bay, Auckland
This research paper undertaken at the University of Auckland investigates the potential for developing a raster geographical information system which is capable of analysing crashes on a lane by lane basis on multilane roads. A 1.2km section of motorway located in St Marys Bay, Auckland has been used as a case study to determine the feasibility of such a system. This project uses ArcGIS to combine crash data, road data and traffic characteristics as a raster GIS plot on an aerial photograph. ArcGIS also includes features which enable crash trends to be displayed based on the attributes of individual crashes. It was found that a raster GIS can have significant benefits over the existing vector crash analysis system used in New Zealand as it can aid the visualisation of crash patterns on multilane roads such as motorways, arterials and intersections. Another advantage is that it can be easily incorporated with police GPS units for more accurate location of crashes. Also plotting data on an aerial photograph can help identify geometric and infrastructure features which may contribute to crashes.
- Record URL:
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Authors:
- Aldridge, J
- HARPER, R
- Wilson, D J
- Dunn, R
- Conference:
- Publication Date: 2011-3
Language
- English
Media Info
- Pagination: 19p
- Monograph Title: Moving towards prosperity: IPENZ Transportation Group 2011 Conference, Auckland, 27-30 March 2011
Subject/Index Terms
- TRT Terms: Aerial photography; Crash analysis; Crashes; Freeways; Geographic information systems; Highway safety; Highways
- Geographic Terms: Auckland (New Zealand); New Zealand
- ITRD Terms: 8531: Case study; 8605: Geographical information system; 2838: Multilane
- Subject Areas: Highways; Safety and Human Factors; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01339121
- Record Type: Publication
- Source Agency: ARRB
- Files: ITRD, ARRB, ATRI
- Created Date: May 9 2011 9:51AM