Case Study in Spatial Misclassification of Work-Zone Crashes

Studies associated with work zone crashes are often based on law enforcement traffic crash reports. Work zone crashes are typically segregated from the larger crash data set by special coding on reports that describe the crash as being in or near roadway construction. A spatial representation of the street and nearest intersecting roadway fields of the crash report and the boundaries of the work zone provide an idea where the crash occurred in a geographic information system (GIS) environment. When the street location of the crash report is compared to the coded work zone field a validation of the location information is possible. Incongruence between the spatial location and coded report location indicates that more than 1 in 3 work zone crashes in the case study are misclassified.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Carrick, Grady
  • Heaslip, Kevin
  • Srinivasan, Sivaramakrishnan
  • Zhu, Xiaoyu
• Conference:
  • Transportation Research Board 88th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2009-1-11 to 2009-1-15
• Date: 2009

Language

• English

Media Info

• Media Type: DVD
• Features: Maps; References; Tables;
• Pagination: 18p
• Monograph Title: TRB 88th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Case studies; Crash data; Crash rates; Geographic information systems; Safety; Traffic crashes; Work zone safety; Work zone traffic control
• Uncontrolled Terms: Misclassification
• Subject Areas: Highways; Safety and Human Factors; I80: Accident Studies;

Filing Info

• Accession Number: 01123164
• Record Type: Publication
• Report/Paper Numbers: 09-2036
• Files: TRIS, TRB
• Created Date: Mar 13 2009 6:36AM