Introduction to traffic survey methods

Traffic engineers and planners need information about traffic conditions for monitoring current conditions and estimating the effects of possible changes. In developing theory and techniques for the latter, information is also required for the calibration and validation of models. Traffic surveys are the means of obtaining information for these purposes. Because the surveys can be expensive and traffic data is subject to so much random variation, a traffic survey should be carefully designed in the light of the exact use that is to be made of the information that is collected. The key to such design is understanding of the relevant random variation and of the survey procedure as a sampling process. This enables bias to be avoided or corrected, and sound judgements to be made about the size and form of the survey. Information for use in survey design can be obtained from previous experience or from a pilot study. Methods of collection and analysis of traffic data are changing rapidly with developments in microelectronics. New equipment is enabling wider ranges of data to be collected more reliably and at lower cost than was possible with earlier forms of equipment. At the same time, advances in statistical techniques are enabling these data to be interpreted in new ways (a).

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/867463384
• Authors:
  • Allsop, R E
• Publication Date: 1984

Language

• English

Media Info

• Pagination: 1-Jun

Subject/Index Terms

• TRT Terms: Data collection; Demand; Equipment; Methodology; Planning
• ATRI Terms: Data collection; Demand; Equipment; Method; Planning
• Subject Areas: Planning and Forecasting;

Filing Info

• Accession Number: 01424878
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 867463384
• Files: ATRI
• Created Date: Aug 24 2012 12:49PM