Abstract
Many expressways are built as continuous viaducts and other ordinary roads often form their frontage roads on the ground level. In these sections, higher quality of aesthetic design of the viaducts is required because the quality of the design may effect strongly on the psychological condition of drivers on the frontage roads. It has not been studied how the drivers on frontage roads evaluate the aesthetic design of these viaducts. In this study, showing the video-taped pictures of 11 viaducts from running vehicles, we surveyed aesthetic evaluation for each viaduct by road engineers, students and general people, and analyzed the difference of evaluation between the groups of testees, the factors which decide a general evaluation, and the relation between the design of viaducts and these evaluation.
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