To help traffic departments build up information systems about traffic offences, a quality control model has been developed, which can be used in taking decisions about selective or stricter law enforcement. The traffic department sets a maximum target level for each type of offence in its control area and it can attempt to to keep the offence rate below this level by regularly checking on a sample of say 100 road users. Since there will always be random fluctuations in the number of offenders the calculations even for a fixed sample size and for a fixed target level must take into account the standard deviation of the binomial distribution. (TRRL)

  • Availability:
  • Corporate Authors:

    National Institute for Transport & Rd Res, S Af

    Council for Scientific and Industrial Research, P.O. Box 395
    Pretoria 0001, Transvaal,   South Africa 
  • Publication Date: 1983-2

Media Info

  • Features: Figures;
  • Pagination: 4 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00393341
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jun 30 1985 12:00AM