出版社：Dipartimento dei Beni Culturali, Alma Mater Studiorum, Università di Bologna (Ravenna)
摘要：During the last years, the constant increase of the request for transport by road and by rail, connected to the economic and social development process, has provoked the birth of the phenomenon of the vibrations induced by the means of transports, with the result of stimulating the resident population's curiosity and the technical personnel's interest. Into the historic centres of the towns, it is possible to trace a series of concomitant factors that tend further to increase this process: the road superstructure mostly used in the historical centres are often stony, and their usage is due mainly to aesthetic reasons; the no-measurement or the lack of maintenance are often the causes of high levels of roughness; the buildings set into the historical centres have got a historical-art value of primary importance and some part of them (such as mosaics, pictures, etc.) are very sensitive to vibrations, being sticking to the outside walls; According to what said above, the noisy and vibrations provoked by the road traffic are becoming even more one of the main cause of the environmental damage.
