THE INFLUENCE OF SURROUNDING BLINDS ON THE RECOGNITION OF COLOURED TRAFFIC SIGNALS (GERMAN)
INVESTIGATIONS SHOWED THAT THE COLORS OF TRAFFIC SIGNALS CAN BE MORE EASILY RECOGNIZED IF THE TRAFFIC SIGNALS ARE RIMMED WITH BLINDS SHOWING A LOW REFLECTION FACTOR. A SURROUNDING BLIND OF APPROXIMATELY 4 DEGREES WAS FOUND TO BE BEST FOR TRAFFIC SIGNALS WITH A 1 DEGREE VISUAL ANGLE. FOR TRAFFIC SIGNALS WITH A USUAL ANGLE OF 2', OPTIMUM EFFICIENCY IS REACHED WITH A SURROUNDING LIGHT BLIND OF APPROXIMATELY 15'. /RRL/
-
Supplemental Notes:
- Vol 19, No 3, PP 27A-31A, 8 FIG, 5 TAB, 1 REF
-
Corporate Authors:
Lichtenstein Consulting Engineers, Incorporated
45 Eisenhower Drive
Paramus, NJ United States 07652 -
Authors:
- JAINSKI, P
- SCHMIDT-CLAUSEN, H J
- Publication Date: 1967-3
Subject/Index Terms
- TRT Terms: Angularity; Color; Reflection; Screens; Traffic signals; Vision
- Old TRIS Terms: Angles (Geometry); Vision characteristics
- Subject Areas: Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00225283
- Record Type: Publication
- Source Agency: Road Research Laboratory /UK
- Files: TRIS
- Created Date: Apr 27 1970 12:00AM