TRAFFIC VOLUME ADJUSTMENTS FOR IMPACT ANALYSIS

A procedure is described for quantifying background traffic volumes, in particular, a rational method of accounting for the hourly, daily, and seasonal variability of existing traffic volumes. This approach is founded on the establishment of a reasonable level of confidence in the analysis volumes by minimizing the possiblity of their underestimation. It is recommended that the impact study analysis be based on reasonable estimates of background traffic volumes. Existing volumes should be adjusted to represent the peak hour of the peak day of an average week of the year. It is also suggested that a peak hour factor need not be used for planning-level analyses; however, if peak hour adjustments are used, they should be representative of a common, sumultaneously occurring 15-minute interval. Regardless of the type of adjustments made, the resulting volumes should reflect the intended use of the impact study: comparative assessment of site impact or mitigation via geometric design.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/614107147
• Corporate Authors:

  Institute of Transportation Engineers (ITE)

  Washington, DC  United States 
• Authors:
  • Bonneson, J A
• Publication Date: 1987-4

Media Info

• Features: References; Tables;
• Pagination: p. 43-46
• Serial:
  • ITE Journal
  • Volume: 57
  • Issue Number: 4
  • Publisher: Institute of Transportation Engineers (ITE)
  • ISSN: 0162-8178
  • Serial URL: https://www.ite.org/publications/ite-journal/

Subject/Index Terms

• TRT Terms: Analysis; Daily; Impact studies; Peak hour traffic; Seasons; Traffic flow; Traffic volume; Travel patterns
• Uncontrolled Terms: Traffic patterns
• Old TRIS Terms: Daily traffic pattern; Seasonal traffic pattern
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00471871
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 31 1987 12:00AM