A METHODOLOGY FOR MEASURING SCREEN-LINE TRAFFIC VOLUMES

The approach taken in estimating traffic volumes across screen-lines or cordon-lines must be directed towards achieving overall accuracy and reliability objectives at the minimum costs. The plans must specify which locations are to be counted and the number of days these measurements are to be made at each of these locations. This paper deals with one approach to the design of this traffic counting programme. Accuracy and reliability objectives are established. Based on the conclusion that each crossing location must be counted at least one day each year, an approach is developed to the determination of additional days required which will minimise cost while still achieving these accuracy objectives. An example is given which illustrates the application of an operational procedure based on these theoretical considerations. (A) /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00410683
• Corporate Authors:

  Printerhall Limited

  29 Newmart Street
  London W1P 3PE,   England 
• Authors:
  • Roark, A L
  • Levinson, H
  • Guhin, J S
• Publication Date: 1975-10

Language

• English

Media Info

• Features: Figures; Tables;
• Pagination: p. 423-425
• Serial:
  • Traffic Engineering & Control
  • Volume: 16
  • Issue Number: 10
  • Publisher: Hemming Group, Limited
  • ISSN: 0041-0683
  • Serial URL: http://www.tecmagazine.com/

Subject/Index Terms

• TRT Terms: Accuracy; Automatic data collection systems; Computer online services; Costs; Data collection; Electromagnetic frequencies; Errors; Location; Measurement; Methodology; Planning; Traffic counting; Traffic counts; Traffic flow; Traffic volume
• Geographic Terms: United States
• ITRD Terms: 8623: Data acquisition; 6440: Error; 6997: Frequency; 9061: Location; 9102: Method; 143: Planning; 689: Traffic count; 671: Traffic flow; 8122: USA
• Subject Areas: Finance; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00131472
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: May 14 1976 12:00AM