TRAFFIC VOLUME SUMMARY STATISTICS

Standardized traffic volume data provide a basis for preliminary examination of the underlying distribution of the data. In this study, traffic volume data from permanently installed devices were examined on a daily basis throughout (Federal) fiscal year 1989. The examination included computer-based edits and analyst data review. If the edited data were accepted, the data were stored in a computer file for later use. Missing or incomplete days of data were not included. Data were not adjusted on the basis of professional judgment. The reviewed and accepted data were maintained in a file specifically designed to prohibit intentional or unintentional operator modification of the measurements. These steps were taken to help ensure base data integrity. At the end of the year, all accepted data were analyzed using Statistical Analysis System software. The traffic volume data from the permanent sites indicate that traffic on many roads is not normally distributed and that site-specific traffic data collected over the period of 1 year may be more variable than previously estimated.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1991/1305/1305-014.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=TRAFFIC+VOLUME+SUMMARY+STATISTICS&author=D.+Albright&publication_year=1991
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309051150
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1305, Finance, Planning, Programming, Economic Analysis, and Land Development 1991. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Albright, David
• Publication Date: 1991

Media Info

• Features: References; Tables;
• Pagination: p. 108-112
• Monograph Title: Finance, planning, programming, economic analysis, and land development 1991
• Serial:
  • Transportation Research Record
  • Issue Number: 1305
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Data recorders; Statistical analysis; Statistics; Traffic data; Traffic volume; Variables
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00621754
• Record Type: Publication
• ISBN: 0309051150
• Files: TRIS, TRB, ATRI
• Created Date: Apr 30 1992 12:00AM