This report discusses the technical aspects of the before and after accident computer program, produced in the County Surveyor's Department in Hertfordshire and methods used. Many people have suggested that before and after accident studies should be made on a regular basis. One difficulty has been that such studies take a considerable resource, and this computer program largely overcomes this difficulty and provides a summary of the results for non-statisticians. However, the program should not be used without some understanding of statistical procedure and this is discussed in the report. /Author/TRRL/

  • Corporate Authors:

    Hertfordshire County Council

    Highway Department, Goldings
    Hertford, Hertfordshire,   England 
  • Authors:
    • Hardy, M F
  • Publication Date: 1976-5

Media Info

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

Subject/Index Terms

Filing Info

  • Accession Number: 00179961
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: HCC Rpt. No. T248/2 Monograph
  • Files: ITRD, TRIS
  • Created Date: Sep 27 1978 12:00AM