VTL zone-aware path cloaking algorithm

Traffic engineering applications often benefit from collecting vehicle Global Positioning System (GPS) traces in well-defined locations. As a motivating example, the authors will consider a traffic signal performance evaluation technique which requires GPS traces of vehicles traversing intersections. Since these applications do not require vehicle identity information, they are a good candidate for data de-identification techniques. Prior techniques can either provide data from specific locations or guarantee a high degree of anonymity under light traffic conditions but do not achieve both. In this paper, the authors propose a virtual trip line zone-aware path cloaking algorithm which combines these features. Zones where data should be retained can be predefined over the intersections of interest and the path cloaking algorithm uses entropy-estimates to decide whether the data can be revealed. Results obtained from a traffic simulator show that the application success rate increased from 39 to 82% compared to a zone-unaware path cloaking algorithm, while achieving a similar degree of privacy.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 1525-1530
  • Monograph Title: 14th International IEEE Conference on Intelligent Transportation Systems (ITSC 2011)

Subject/Index Terms

Filing Info

  • Accession Number: 01565391
  • Record Type: Publication
  • ISBN: 9781457721984
  • Files: TRIS
  • Created Date: May 20 2015 2:32PM