REDUCTION OF STREET LIGHTING IN TIMES OF CRISIS

DAEMPNING AV VAEG- OCH GAUTBELYSNING I KRISTID

Annual energy consumption in Sweden for street lighting is about 1 twh, which is under 1% of total electrical energy consumption. Although reduction of street lighting would not therefore have a major energy conservation effect, it would have a psychological effect. Reduction can be effected by (1) turning off all lights along a road/street; (2) turning off a certain proportion (every other, every third, etc); (3) shortening the lighting period. Introduction of a flexible control system would cost about Skr. 50M; 5% reduction in lighting (by halving intensity between 00 and 05 hours) would save about Skr. 6.5M annually. Investigations of literature to find what effect reduction of lighting would have on road accidents show (1) reduction should be mainly confined to slack periods and to roads with a high degree of segregation, and to pedestrian and cycle ways where lighting is chiefly provided for comfort and safety purposes; (2) reduction should be avoided during rush periods on busy streets, urban motorways, etc. To sum up, if a steep rise in accidents is to be avoided, then the possible reduction in energy consumption for street lighting will produce only marginal savings in relation to total consumption. (TRRL)

  • Corporate Authors:

    Engwall and Strahle AG

    Brunkebergstorg 20/4
    Stockholm C,   Sweden 
  • Authors:
    • Tykesson, F
  • Publication Date: 1979

Language

  • Swedish

Media Info

  • Features: Figures;
  • Pagination: p. 3-4
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00309106
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD, TRIS
  • Created Date: Aug 27 1980 12:00AM