EFFECTS OF ROAD LIGHTING AND ASSESSMENT OF THE NEED FOR IT

VERKNINGAR OCH BEDOEMNING AV BEHOVET AV VAEGBELYSNING

The effect of road lighting is usually assessed by before and after studies or by comparative investigations. Accident statistics show that (1) most accidents in the dark are frontal collisions and collisions with pedestrians, (2) 26% of accidents involving pedestrians occur on unlit roads, (3) 33% of fatal accidents occur on unlit roads, (4) more than half the accidents on unlit roads occur on straight sections. Road lighting, apart from reducing accidents, eliminates drop in speed and capacity reduction due to unlit conditions, reduces glare and provides visual guidance. When assessing the need of road lighting, account should be taken of (1) general safety and comfort, (2) ease of driving, (3) improvement in observing traffic signs etc, (4) improvement in visual guidance. Fuel savings due to lighting amount to 0.4-0.7 1/100 km. There is a considerable reduction in accident costs. The economy of a lighting installation can be assessed by determination of comparative index for (1) traffic economy, (2) traffic safety, (3) other factors, by weighting this and by determining the "need index" of the lighting project. /TRRL/

  • Supplemental Notes:
    • Paper presented at Nordisk Belysningskongress I, Stockholm, May 24-26, 1977.
  • Corporate Authors:

    Svenska Belysningssaellskapet

    c/o Ljuskultur, Skepparg 27, Box 5512
    114 85 Stockholm,   Sweden 
  • Authors:
    • HAUTALA, P
  • Publication Date: 1977

Language

  • Swedish

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 93-118

Subject/Index Terms

Filing Info

  • Accession Number: 00184492
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Feb 3 1979 12:00AM