USE OF BLANK OUT SIGNS AT WEIGH SCALE SITES
THE TRAFFIC ENGINEER IS OFTEN CALLED UPON TO IMPROVE AN EXISTING SITUATION THROUGH A SYSTEM OF SIGNS, SIGNALS OR MINOR GEOMETRIC CHANGES. THE PROBLEM DESCRIBED INVOLVES A PROVINCIAL GOVERNMENT WEIGH SCALE INSTALLATION LOCATED ON THE WEST SIDE OF A FOUR LANE UNDIVIDED HIGHWAY. SINCE THE SCALE SERVED TRUCKS FROM BOTH DIRECTIONS, NORTHBOUND TRUCKS HAD TO CONDUCT ALL MANEUVERS SUCH AS DECELERATION, WAITING FOR GAPS IN OPPOSING TRAFFIC, AND ACCELERATION TO HIGHWAY SPEEDS IN THE LEFT HAND OR HIGH SPEED LANE. SEVERAL POSSIBLE SOLUTIONS WERE STUDIED AND IT WAS FINALLY CONCLUDED THAT A RESTRICTIVE SPEED LIMIT SHOULD BE IMPOSED ON THE SECTION OF HIGHWAY NEAR THE SCALE BUT ONLY DURING THE TIMES THAT THE SCALES WERE OPEN. THE VARIOUS METHODS OF POSTING A TEMPORARY SPEED LIMIT WERE EXAMINED AND IT WAS DETERMINED THAT BLANK OUT SIGNS WOULD BE MOST SUITABLE. THE REQUIREMENTS WERE PRESENTED TO SEVERAL KNOWN SUPPLIERS OF SIGNS AND SAMPLES OF A NUMBER OF PRODUCTS WERE REVIEWED. A SET OF TEST SIGNS WAS INSTALLED AND THEIR EFFECTIVENESS CHECKED BY A SERIES OF VISUAL INSPECTIONS AS WELL AS BEFORE AND AFTER RADAR SPEED STUDIES. A FEW MODIFICATIONS WERE MADE IN THE SIGNS AND THEY ARE NOW OPERATING IN A SATISFACTORY MANNER. /CGRA/
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Supplemental Notes:
- Vol 19, 16 PP, 6 FIG, 6 PHOT
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Authors:
- Walker, D R
- WALKER, H K
- Conference:
- Publication Date: 1966-4
Subject/Index Terms
- TRT Terms: Acceleration (Mechanics); Deceleration; Four lane highways; Gap acceptance; Inspection; Passing lanes; Radar vehicle detectors; Speed limits; Studies; Traffic speed; Weight indicators
- Old TRIS Terms: Blankout signs; Inner lane; Speed studies
- Subject Areas: Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00225090
- Record Type: Publication
- Source Agency: CANADIAN GOOD ROADS ASSOCIATION
- Files: TRIS
- Created Date: Oct 7 1994 12:00AM