LIGHTING, VISIBILITY AND ACCIDENTS

THE FIRST PART OF THE REPORT CONSISTS OF A REVIEW OF THE STATE OF THE ART OF USING ARTIFICIAL LIGHTING ON ROADS AND VEHICLES WITH PARTICULAR REFERENCE TO THE SIMULTANEOUS USE OF THESE TWO TYPES OF LIGHTING. THE CHAPTER ON PUBLIC LIGHTING IS SUPPORTED BY AN ANNEX REVIEWING THE DATA AVAILABLE ON THE EFFECT OF PUBLIC LIGHTING ON ACCIDENTS. THE CHAPTER ON VEHICLE LIGHTING STRESSES THE IMPORTANCE OF STANDARDIZATION WITH REGARD TO HEADLIGHTS AND ALL FORMS OF VEHICLE MARKERS AND SIGNALLING LIGHTS. IT IS CONCLUDED THAT THERE IS INSUFFICIENT EVIDENCE AVAILABLE TO RECOMMEND SOLUTIONS TO THE MAJOR PROBLEMS. THE SECOND PART, OF THE REPORT CONTAINS THE DETAILS OF THE FOLLOWING EIGHT RECOMMENDED INTERNATIONAL COOPERATIVE PROGRAMS OF RESEARCH: (1) POLARIZED HEADLIGHTS, (2) USE OF VEHICLE FRONT LIGHTS ON LIGHTED ROADS, (3) VEHICLE MARKERS AND SIGNALLING LIGHTS, (4) SUPPLEMENTARY LIGHTING AT PEDESTRIAN CROSSINGS, (5) TRAFFIC PROBLEMS AT TWILIGHT, (6) IMPROVEMENTS IN RELATION TO CONVENTIONAL HEADLIGHTS, (7) EFFECT OF PUBLIC LIGHTING ON SAFETY AND TRAFFIC, AND (8) EFFECT OF ROAD SURFACE TEXTURE AND COLOR ON VISIBILITY AND SAFETY AT NIGHT. /AUTHOR/