NATURAL AND ARTIFICIAL WEATHERING OF TRAFFIC SIGNS
| 项目名称： | NATURAL AND ARTIFICIAL WEATHERING OF TRAFFIC SIGNS |
| 摘要： | PAINTS AND RETROREFLECTIVE MATERIALS FOR TRAFFIC SIGNS ARE BEING EXPOSED TO NATURAL WEATHERING IN THREE CLIMATIC ZONES IN THE FEDERAL REPUBLIC AND TO ARTIFICIAL WEATHERING IN CLIMATICALLY CONTROLLED EQUIPMENT. MODIFICATIONS TO THE COLOURS AND THE REFLECTION VALUES OF THE MATERIALS ARE BEING DETERMINED AS A FUNCTION OF THE WEATHERING. RETROREFLECTIVE FOILS AND NEW TYPES OF DYES WHICH ARE LUMINOUS IN DAYLIGHT ARE BEING INCLUDED IN THE TESTS. SUPERSEDES IRRD RESEARCH PROJECT NO 32451. |
| 状态： | Active |
| 资助组织： | BUNDESMINISTER FUER VERKEHR |
| 项目负责人： | - |
| 执行机构： | Bundesanstalt für Straßenwesen (BASt) |
| 开始时间： | 19580000 |
| 预计完成日期： | 19780000 |
| 主题领域： | Research；I35: Miscellaneous Materials |
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