QUALITY OF PUBLIC LIGHTING AS A FACTOR OF TRAFFIC SAFETY

DIE QUALITAET DER OEFFENTLICHEN BELEUCHTUNG ALS FAKTOR DER VERKEHRSSICHERHEIT

ACCIDENT STATISTICS FOR SWITZERLAND SHOW THAT IN 1973 THE POLICE RECORDED 71,350 TRAFFIC ACCIDENTS WITH 32,800 INJURIES AND 1,450 DEATHS, OF WHICH 431 WERE PEDESTRIANS. ABOUT ONE QUARTER OF THE TRAFFIC ACCIDENTS WITH JUST OVER ONE THIRD OF THE VICTIMS OCCURRED IN THE HOURS OF DARKNESS. THE PROPORTION OF FATALITIES OCCURRING DURING DARKNESS WAS 40% AND FOR PEDESTRIANS WAS IN EXCESS OF THIS FIGURE. THE DARKNESS FACTOR INCREASED THE RISK FOR A PEDESTRIAN BY 30%, A WET HIGHWAY BY 100%. THE RISK FOR A PEDESTRIAN TO CROSS THE ROAD ON A WET NIGHT IS 10 TIMES AS GREAT AS IN DAYLIGHT. INVESTIGATIONS SHOW THAT A GOOD QUALITY PUBLIC LIGHTING INSTALLATION WILL REDUCE THE NUMBER OF NIGHT TIME ACCIDENTS BY 30% AND THE NUMBER OF PEDESTRIAN ACCIDENTS BY OVER 50%. THE FUNDAMENTAL COMPONENTS OF ILLUMINATION ARE THE EXTENT OF THE MEDIUM LUMINANCE AND ITS UNIFORMITY. NIGHT TIME TRAFFIC SAFETY INCREASES WITH LUMINANCE UP TO ABOUT 5 - 6 CD/SQ. METRE. IF CONTINUOUS LIGHTING IS EXCLUDED, IT IS POSSIBLE TO EMPHASIZE PARTICULARLY HAZARDOUS POINTS IN THE HIGHWAY SUCH AS PEDESTRIAN CROSSINGS, BY MEANS OF LOCALLY CONFINED, GOOD LIGHTING UNITS. FURTHERMORE, PSYCHOLOGICAL ASPECTS OF THE BEHAVIOUR OF ROAD USERS TOWARDS PEDESTRIAN STRIPES ARE DESCRIBED, AND MEASURES FOR THE IMPROVEMENT OF COMMUNICATION BETWEEN VEHICLE DRIVERS AND PEDESTRIANS ARE SUGGESTED.

  • Authors:
    • WALTHERT, R
  • Publication Date: 1975-5

Language

  • German

Media Info

  • Pagination: 219-20
  • Serial:
    • Lichttechnik
    • Volume: 27
    • Issue Number: 5
    • Publisher: Helios-Verlag

Subject/Index Terms

Filing Info

  • Accession Number: 01304361
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD
  • Created Date: Nov 21 2010 9:53AM