TENNESSEE TRAFFIC PATTERNS

THERE IS A REMARKABLE SIMILARITY OF SUCCESSIVE ANNUAL OR SEASONAL PATTERNS AT THE SAME STATION BASED ON MONTHLY FLOW MEASUREMENTS. THERE IS A GREAT SIMILARITY IN GENERAL PATTERN WHEN THE WEEKLY FLOW IS USED. HOWEVER, THERE IS A RANGE OF VARIATION FROM 0 TO 30 PERCENT IN DENSITY, OR VOLUME, FOR SUCCESSIVE WEEKS. WIDER VARIATION IN VOLUMES FOR DAILY FLOW MAY BE EXPECTED. COMPARING EACH DAY OF THE WEEK WITH THE AVERAGE DAY FOR THE WEEK, A RANGE OF VALUES FROM 0.6 TO 1.5 TIMES THE AVERAGE IS FOUND. THE USUAL RANGE OF VALUES IS FROM 0.8 TO 1.20 TIMES THE AVERAGE. THE RATIOS OF TOTAL WEEKLY TRAFFIC TO TRAFFIC ON WEDNESDAY, FRIDAY AND SUNDAY ARE GROUPED CLOSELY ABOUT THERE AVERAGE WHICH INDICATES THAT THE AVERAGES FOR THESE THREE DAYS MAY BE USED FOR GETTING THE AVERAGE WEEKLY FLOW. THE STUDIES INDICATE CONFORMITY OF GENERAL PATTERN. BY TAKING SAMPLES AT DIFFERENT HOURS OF DIFFERENT DAYS AN AVERAGE MAY BE OBTAINED WHICH WILL CLOSELY APPROXIMATE THE AVERAGE FOR ANY PERIOD. THE DATA STUDIED THUS FAR SHOW THAT THE MORE SAMPLES TAKEN, THE BETTER WILL BE THE CONFORMITY. IF FOR EXAMPLE, SEVEN HOURS COUNT WERE TO BE MADE, THESE SEVEN HOURS SCATTERED OVER THE DIFFERENT DAYS OF THE WEEK, THE AVERAGE WOULD BE BETTER THAN TO COUNT THE SEVEN HOURS IN ANY ONE DAY. FURTHER IF THE HOURS WERE SELECTED AT A DIFFERENT TIME FOR EACH DAY, THE RESULT WOULD BE BETTER THAN TO USE THE SAME HOURS FOR THE SEVERAL DAYS. /AUTHOR/

  • Supplemental Notes:
    • Vol 15, pp 324-331, 7 FIG
  • Authors:
    • Dougherty, N W
    • Marsh, B W
  • Discussers:
    • Cherniack, N
    • Morris, M
    • MARSTON, A
  • Publication Date: 1936

Media Info

  • Monograph Title: Proceedings of the Fifteenth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 4-6, 1935
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00228002
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jun 11 1971 12:00AM