TURN SIGNALS FOR MOTOR VEHICLES
AN ANALYSIS OF ACCIDENTS IN GREAT BRITAIN HAS SHOWN THAT IT IS IMPORTANT THAT DIRECTION SIGNALS ON MOTOR VEHICLES SHOULD BE READILY SEEN FROM THE FRONT AND SIDE AS WELL AS FROM THE REAR, PARTICULARLY BY CYCLISTS AND MOTORCYCLISTS. IN LIGHT OF THIS INFORMATION, THE RELATIVE MERITS OF PRESENT-DAY EXAMPLES OF SEMAPHORE-ARM AND FLASHING TURN SIGNALS FOR USE ON CARS HAVE BEEN COMPARED. IT IS CONCLUDED, OVER THE WIDE VARIETY OF CONDITIONS TESTED, THAT A SIDE- MOUNTED AMBER FLASHING INDICATOR (THE 'AMBER EAR') IS THE MOST EFFECTIVE INDICATOR. A REAR INDICATOR WAS FOUND TO BECOME LESS EFFECTIVE THE NEARER IT WAS TO THE STOP LIGHT. THERE SEEM TO BE ADVANTAGES IN MOUNTING SIGNALS AT DRIVERS' EYE-LEVEL, AND AMBER COLORED SIGNALS APPEAR BETTER THAN RED OR WHITE ONES. THE SIDE-MOUNTED INDICATOR IS LIKELY TO BE OF HELP TO CYCLISTS AND MOTORCYCLISTS, WHO ARE THE CHIEF VICTIMS OF SERIOUS AND FATAL TURNING-CAR ACCIDENTS AT ROAD INTERSECTIONS IN GREAT BRITAIN. THE IMPORTANCE OF STANDARDIZATION IN THE CHOICE OF DIRECTION SIGNALS IS STRESSED AND RECOMMENDATIONS ARE MADE REGARDING THE CHOICE. /AUTHOR/
- Record URL:
-
Supplemental Notes:
- No 172, pp 104-120, 9 FIG, 6 TAB, 7 REF, 2 APP Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
-
Authors:
- Moore, R L
- Crawford, A
- Odescalchi, P
- Publication Date: 1958
Media Info
- Media Type: Digital/other
- Pagination: 17p
- Monograph Title: Driver Characteristic and Behavior Studies
-
Serial:
- Highway Research Board Bulletin
- Issue Number: 172
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Drivers; Eye; Flashing; Height; Motor vehicles; Standardization; Turn signals; Visibility
- Uncontrolled Terms: Side
- Old TRIS Terms: Turns signals
- Subject Areas: Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00222979
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Apr 28 1994 12:00AM