Estimation of Dynamic Link Flows and Origin-Destination Matrices from Lower Polling Frequency Probe Vehicle Data

The authors present a methodology of estimating dynamic link flows and origin-destination matrices using lower polling frequency probe vehicle data (e.g. one point every 30-60s). Link travel time is first obtained from map-matched probe points using a method of proportional allocation. A derived speed-density function is then fitted for different types of roads. A Bayesian method that carefully incorporates prior information is used to estimate dynamic link flows from link travel speed. A bi-level generalized least-square (GLS) estimator is formulated so as to estimate dynamic OD matrices from estimated link flows. A traffic simulator in VISSIM is developed for a median size urban network using an open data set. The results validate the advantages of the proposed method for lower polling frequency probe vehicle data.

• Record URL:
  • https://doi.org/10.11175/easts.10.762
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Estimation+of+Dynamic+Link+Flows+and+Origin-Destination+Matrices+from+Lower+Polling+Frequency+Probe+Vehicle+Data&author=P.+CAO&author=T.+MIWA&author=T.+YAMAMOTO&author=T.+MORIKAWA&publication_year=2013
• Authors:
  • CAO, Peng
  • MIWA, Tomio
  • YAMAMOTO, Toshiyuki
  • MORIKAWA, Takayuki
• Publication Date: 2013

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: pp 762-775
• Serial:
  • Journal of the Eastern Asia Society for Transportation Studies
  • Volume: 10
  • Issue Number: 0
  • Publisher: Eastern Asia Society for Transportation Studies
  • EISSN: 1881-1124
  • Serial URL: https://www.jstage.jst.go.jp/browse/easts/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Bayes' theorem; Data collection; Dynamic models; Least squares method; Matrices (Mathematics); Network links; Origin and destination; Probe vehicles; Traffic estimation; Traffic flow; Traffic simulation; Travel time
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 01516653
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Feb 28 2014 1:59PM