The Study addressed the effectiveness of two reflective materials and several patterns used on lane and road closure barricades. Specific information was obtained concerning (1) detection distance; (2) pattern recognition; (3) effect of High-intensity versus Engineering grade sheetings; (4) optimum ratio of white to orange (or red) sheeting for the diamond pattern; and (5) the effect of different patterns on drivers' steering. Concerning the results of the survey: (1) Diagonal stripes do not imply directionality to most drivers, but if forced to choose in an ambiguous situation they would go the wrong way; (2) Drivers generally will go in the direction indicated by the lane closure array even if the barricade pattern is clearly contradictory; and (3) Preliminary assessment of a new Type II design indicates barricades can be made, using existing materials, that show directionality much more clearly.
Legibility and Driver Response to Selected Lane and Road Closure Barricades
1987
46 pages
Report
No indication
English
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