GLARE ON MOTORWAYS
THE STUDY HAS BEEN CONCERNED MAINLY WITH THE VISUAL DISTANCES WHEN DRIVERS ON MOTORWAY ARE SUBJECT TO GLARE FROM CAR HEADLIGHTS. A MATHEMATICAL MODEL WHICH ALLOWS THE CALCULATION OF VISUAL DISTANCES UNDER GLARE FROM ONCOMING VEHICLES HAS BEEN DEVELOPED AND TESTED BY LYSTEKNISK LABORATORIUM. A DETAILED DESCRIPTION OF THIS PART OF THE STUDY IS GIVEN IN PART II (IN ENGLISH). SOME PRACTICAL CONSEQUENCES FOR DANISH DESIGN STANDARDS OF THIS STUDY ARE OUTLINED IN PART I (IN DANISH). VISUAL DISTANCES ARE CALCULATED FOR DIFFERENT MEDIAN WIDTHS AND HIGHWAY CURVATURE AND FOR TWO TYPICAL EXAMPLES OF HORIZONTAL REVERSED CURVATURE WITH A 12 M MEDIAN WIDTH. IT IS CONCLUDED THAT EVEN WHEN THE MEDIAN WIDTH IS 12 M, ONCOMING VEHICLES MUST USE DIMMED HEADLIGHTS AT LEAST IN CURVES, UNLESS SOME SORT OF A GLARE FENCE IS SET UP IN THE CENTRAL RESERVE. /HSRI/
-
Corporate Authors:
Radet Trafiksikkerhedsforskning /Den
, -
Authors:
- Frederiksen, E
- Jorgensen, N O
- Publication Date: 1972
Media Info
- Features: Photos; References; Tables;
- Pagination: 78 p.
Subject/Index Terms
- TRT Terms: Curvature; Glare; Headlamps; Mathematical models; Medians; Radius; Sight distance; Width
- Old TRIS Terms: Radius of curvature
- Subject Areas: Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00221876
- Record Type: Publication
- Source Agency: Highway Safety Research Institute
- Files: TRIS
- Created Date: Apr 8 1973 12:00AM