While the figure of 30% accident reduction has been used to justify lighting unlit or poorly-lit roads, little or nothing is known regarding the lighting qualities which do most to bring about this reduction in accidents. Furthermore, the validity of the 30% figure to support improvements to existing lighting is open to some doubt. It may be that there is a limit to the extent to which certain of the lighting qualities need to be improved, whereupon any further improvement does nothing more to reduce accidents, or indeed may adversely affect the trend in casualties. The aim of this study has been to provide a more detailed insight into the way in which road lighting is related to accidents. The study is limited to dry road conditions, and this paper might be regarded as comprising four parts: sections 1 and 2 explain the choice of road sites to be studied; sections 3 and 4 describe the measurement and computation of lighting values; sections 5 and 6 explain the statistical analysis of accident data and correlation with lighting data; finally, section 7 discusses the results. (TRRL)

  • Corporate Authors:

    Association of Public Lighting Engineers

    78 Buckingham Gate, Westminster
    London SW1E 6PF,   England 

    Institution of Public Lighting Engineers

    Lennox House, 9 Lawford Road
    Rugby, Warwichshire,   England 
  • Authors:
    • Hargroves, R A
    • Scott, P P
  • Publication Date: 1979-12

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 213-221
  • Serial:
    • Public Lighting
    • Volume: 44
    • Issue Number: 187
    • Publisher: Association of Public Lighting Engineers

Subject/Index Terms

Filing Info

  • Accession Number: 00310110
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: HS-030 127
  • Files: ITRD, TRIS
  • Created Date: Jun 9 1980 12:00AM