Assessment of Speed Information Based on Probe Vehicle Data: A Case Study in New Jersey

Accurate real-time traffic information is essential for the development of efficient traffic control and management. In recent years, private probe vehicle data has been employed by many public transportation agencies. However, most of those agencies have been unable to validate the accuracy of the purchased private probe data. This paper describes a sound methodology to evaluate the accuracy of estimated link travel speed by three probe data providers, which are INRIX, NAVTEQ, and TrafficCast, by using the ground truth travel speed of TRANSCOM‘s System for Managing Incidents & Traffic (TRANSMIT). The study route segments are on interstate 287 (I-287) and 78 (I-78) in New Jersey.

• Supplemental Notes:
  • This paper was sponsored by TRB committee ABJ30(3) Travel Time, Speed and Reliability.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Kim, Kitae
  • Motiani, Dennis
  • Spasovic, Lazar
  • Dimitrijevic, Branislav
  • Chien, Steven
• Conference:
  • Transportation Research Board 93rd Annual Meeting
  • Location: Washington DC
  • Date: 2014-1-12 to 2014-1-16
• Date: 2014

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Maps; References; Tables;
• Pagination: 19p
• Monograph Title: TRB 93rd Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Accuracy; Average travel speed; Data collection; Data quality; Interstate highways; Probe vehicles; Real time information; Traffic control
• Geographic Terms: New Jersey
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 01520346
• Record Type: Publication
• Report/Paper Numbers: 14-4464
• Files: TRIS, TRB, ATRI
• Created Date: Mar 27 2014 3:38PM