IMPUTING MISSING VALUES IN ITS DATA ARCHIVES FOR INTERVALS UNDER 5 MINUTES

Previous studies at the Texas Transportation Institute (TTI) have indicated that missing data values (i.e., non-response) are a common occurrence with intelligent transportation system (ITS) data archives. Non-response in ITS data archives should be addressed if analysts wish to utilize the full potential of their archives. In this paper, the authors describe several methods for imputing non-response in traffic volumes occurring in intervals under five minutes. Traffic volume data from the TransGuide traffic monitoring system in San Antonio is used to develop and test the imputation methods

• Supplemental Notes:
  • Publication Date: 2001 Transportation Research Board, Washington DC Remarks: Paper 01-2760 prepared for presentation at the 80th annual meeting of the Transportation Research Board, Washington, D.C., January 2001
• Corporate Authors:

  University of Toronto

  Department of Civil Engineering, 35 St George Street
  Toronto, Ontario  Canada  M5S 1A4

  University of California, Berkeley

  California PATH Program, Institute of Transportation Studies
  Richmond Field Station, 1357 South 46th Street
  Richmond, CA  United States  94804-4648

  California Department of Transportation

  1120 N Street
  Sacramento, CA  United States  95814

  University of Toronto

  Intelligent Transportation Systems Center
  Toronto, Ontario  Canada 

  Natural Sciences and Engineering Research Council Canada

  ,    

  University of Iowa, Iowa City

  102 Church Street
  Iowa City, IA  United States  52242

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  PTV AG

  ,    
• Authors:
  • Gold, David L
  • Turner, Shawn M
  • 0000-0002-5717-7742
  • Gajewski, Byron J
  • Spiegelman, Clifford
• Conference:
  • Transportation Research Board 80th Annual Meeting
  • Location: Washington D.C.
  • Date: 2001-1-7 to 2001-1-11
• Date: 2001

Language

• English

Media Info

• Pagination: 8 p.

Subject/Index Terms

• TRT Terms: Automatic vehicle monitoring; Databases; Traffic estimation; Vehicle detectors
• Identifier Terms: TransGuide (Program : San Antonio, Texas)
• Subject Areas: Data and Information Technology;

Filing Info

• Accession Number: 00806614
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: PATH, USDOT, STATEDOT
• Created Date: Mar 13 2001 12:00AM