The blacksite exercise was inaugurated in 1971 to identify and take remedial low cost engineering action at sites with a high accident risk in Hertfordshire. This study considers the results at 68 sites where remedial action had been completed for a period greater than one year by 1 January 1978. There has been an apparent accident reduction of 535 accidents at the combined 68 sites since remedial action was carried out. This represents an apparent casualty saving of 709 casualties including 12 fatalities and 163 serious injuries. This study is of special importance as it is believed to contain the largest number of sites in Great Britain where accidents at each individual site has been the subject of a detailed depth investigation followed by engineering remedial action specifically designed to prevent future accidents and where the exercise has been given the discipline of prespecified quantified objectives. The report concludes that the original objectives have already been surpassed. /TRRL/

  • Corporate Authors:

    Hertfordshire County Council

    Highway Department, Goldings
    Hertford, Hertfordshire,   England 
  • Authors:
    • Hardy, M F
  • Publication Date: 1978-11

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 33 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00195915
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1979 12:00AM