Sunday, March 16, 2014

Laser and radar unveil the secrets of Roman bridges

3D model of the Roman bridge of Segura, on the border between Spain and Portugal.
Credit: Grupo de Geotecnologías Aplicadas (UVigo)

Dscovering hidden arches, visualising the sloped outline characteristic of the medieval period, finding a Renaissance engraving on a Roman arch or detecting restorations: these are some of the results that have been obtained by researchers at the University of Vigo (Spain) in their study of more than 80 Roman and medieval bridges. The assessment was carried out with the help of a ground-penetrating radar, a laser scanner and mathematical models, technology that benefit conservation.

In recent years, UNESCO and other organisations concerned with the conservation of cultural heritage have underlined the importance of using non-destructive methods to document monuments´ characteristics and evaluate their state of conservation.

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