A COMPARATIVE EVALUATION OF SPEED CONTROL SIGNS
AN EXPERIMENT WAS CARRIED OUT TO COMPARE THE EFFECTIVENESS OF DIFFERENT TYPES OF ROAD SIGN USED FOR THE IMPOSITION OF SPEEDS AND FOR THE REMOVAL OF RESTRICTIONS ON TRAFFIC SPEEDS. THE TIME REQUIRED TO CLASSIFY EACH SIGN INTO ONE OF FOUR CATEGORIES WAS THE PRIMARY MEASURE USED FOR COMPARISON. SIGNIFICANT DIFFERENCES WERE FOUND AMONG THE SIGNS AND THE CONCLUSIONS WHICH MAY BE DRAWN ARE SUMMARIZED. (1) SYMBOLIC SIGNS WERE FOUND TO BE SUPERIOR TO SIGNS DISPLAYING VERBAL MESSAGES. (2) OF THOSE EXAMINED THE MOST EFFECTIVE TYPE OF SPEED RESTRICTION SIGN WAS FOUND TO BE THE TYPE OF CIRCULAR SIGN RECOMMENDED IN THE DRAFT U.N. PORTOCOL. (3) OF THOSE EXAMINED THE MOST EFFECTIVE TYPE OF DE-RESTRICTION SIGN WAS FOUND TO BE A WHITE SIGN BEARING A BLACK OBLIQUE BAR. (4) A BLUE CIRCULAR SIGN BEARING WHITE NUMERALS WAS FOUND TO BE SUPERIOR TO A VERBAL SIGN FOR THE IMPOSITION OF A MINIMUM SPEED. (5) A BLUE CIRCULAR SIGN WITH WHITE DIGITS CANCELLED BY MEANS OF AN OBLIQUE RED BAR WAS FOUND TO GIVE FASTER RESPONSES THAN A VERBAL SIGN FOR THE TERMINATION OF A MINIMUM SPEED ZONE. (6) IN ONLY ONE CASE WAS IT POSSIBLE TO DISCRIMINATE BETWEEN SIGNS ON THE BASIS OF ERRORS. AND (7) THE EXPERIMENTAL METHOD USED PROVED SENSITIVE TO DIFFERENCES AMONG SIGNS AND IS CONSIDERED SUITABLE FOR FURTHER USE IN SIMILAR STUDIES./RRL/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00050164
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Supplemental Notes:
- Vol 3, No 8, PP 3-11, 1 FIG, 3 TAB, 9 REF
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Authors:
- Cameron, C
- Mcgill, W A
- Publication Date: 1968-12
Media Info
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Serial:
- Australian Road Research
- Publisher: ARRB
- ISSN: 0005-0164
Subject/Index Terms
- TRT Terms: Alternatives analysis; Economic efficiency; Legibility; Speed control; Symbols; Traffic signals; Traffic signs; Traffic speed
- Uncontrolled Terms: Efficiency
- Old TRIS Terms: Speed control signal
- Subject Areas: Economics; Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00225284
- Record Type: Publication
- Source Agency: Road Research Laboratory /UK
- Files: TRIS, ATRI
- Created Date: Mar 19 1971 12:00AM