GUIDE TO TRAFFIC COUNTING IN STATE ROAD AUTHORITIES

The objective of the guide is to provide a basis for the design of traffic counting systems which will provide traffic data with a consistent and specified level of accuracy and a consistent coverage of the road systems. It has been prepared with the intention that it should also be of value to other government agencies, local authorities and those economists, planners and designers whose functions include the interpretation and use of traffic data. Basic traffic data may be separated into three well defined groups: 1) data relating to the variation of traffic flow 2) data relating to the time- variation of traffic, and 3) data for the composition of traffic flow. A traffic counting system should include the following characteristics, measured to specified minimum accuracy levels using estimation processes: annual average daily traffic (AADT), trends in AADT, travel in vehicle-kilometres (VKT), trends in VKT, traffic composition, and ranking of highest hourly flows. Large volumes of precise data must generally be presented as numerical tabulations. However, graphical representation permits very rapid visual interpretation, particularly of variations in space and time, and is usually sufficiently accurate for most purposes. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0855881496
• Corporate Authors:

  National Association of Australian State Road Auth

  323 Castlereagh Street
  Sydney, New South Wales,   Australia 
• Publication Date: 1982

Media Info

• Features: Figures; References; Tables;
• Pagination: 52 p.

Subject/Index Terms

• TRT Terms: Accuracy; Data collection; Errors; Forecasting; Guidelines; Level of service; Measurement; Methodology; Peak periods; Physical distribution; Reversible traffic lanes; Time; Traffic; Traffic congestion; Traffic counting; Traffic counts; Traffic flow; Traffic flow rate; Traffic surveys; Variance; Vehicle miles of travel; Vehicle mix
• Uncontrolled Terms: Traffic fluctuation
• Geographic Terms: Australia
• ITRD Terms: 8006: Australia; 632: Congestion (traffic); 8623: Data acquisition; 9016: Distribution (gen); 6440: Error; 692: Fluctuation (traffic); 132: Forecast; 653: Level of service; 6136: Measurement; 9102: Method; 612: Peak hour; 607: Reversible lane; 755: Traffic; 641: Traffic composition; 689: Traffic count; 671: Traffic flow; 676: Traffic survey; 292: Vehicle mile
• Subject Areas: Freight Transportation; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00388988
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 0-85588-149-6
• Files: ITRD, TRIS, ATRI
• Created Date: Oct 30 1984 12:00AM