The objective of this study was to study how the retroreflective power of sheetings of different brands and types changed with exposure to traffic. The retroreflective sheetings tested were all produced for use on road signs. Brands and types of retroreflective materials for use on Swedish road signs were applied to the same road sign. These signs were then exposed to traffic along three rural roads for 4.5 years (5 winters). The retroflection of the materials on each sign was measured before exposure (as new) and then after careful cleaning after the second, third, fourth and fifth winter in traffic. The main result is that the retroflective sheeting, independent of brand as well as type, has lost about the same relative amount of retroflective power. The loss was about 10% each year and about 50% of the initial value remained after the fifth winter.
Reflexfoliers Retroreflexion efter Exponering i Trafikmiljoen (Retroreflection of Retroreflective Sheeting after Exposure to the Traffic Environment)
1993
26 pages
Report
No indication
English
Highway Engineering , Materials Degradation & Fouling , Transportation & Traffic Planning , Transportation , Reflectorized signs , Sign reflectance , Traffic signs , Aging(Materials) , Reflective materials , Sign visibility , Traffic control devices , Weathering , Reflecting surfaces , Reflectorization , Foreign technology
Reflexfoliers retroreflexion efter exponering i trafikmiljön
TIBKAT | 1993
|Retroreflective sheeting for traffic control signs, Scotchlite diamond grade
Online Contents | 1996