3D Model of Underground Canal Aposa Bologna
Gualtiero Parmeggiani et al.
Bologna is an ancient city located halfway between Venice and Florence. The city is crossed by several watercourses with most parts of their path running underground. In the middle-ages, Bologna became very important for its handcraft sector especially in the production and commerce of silk, and because of its ancient University built in 1088. During those years, canals run opencast and bring water to the city‟s silk mills. The lack of free lots within the city‟s fortifications caused the covering of them in the last centuries. One of these canals named Aposa, is the only natural waterway that passes through and underneath Bologna‟s historic city center. Originally running as an opencast in its entire 7.5 km length, as said before, since the middle-ages, some citizen obtained the possibility of closing some of its parts with masonry vaults to be able to build dwellings above them, In the following centuries, the whole canal was completely covered and built on. In the past years, after serving as a communal sewer, the municipality did various maintenance works and after the creation of a new closed-system sewer in the early 90s, it finally became accessible. Actual maintenance conditions however, does not allow it to be a real tourist attraction, and Bologna‟s Municipality has a limited information about the original canal pathways, its private sewer insertions, the current conservation state of vaults and arches etc. The aim of this project, undertaken by the Collegio Geometri di Bologna, is to create a 3D model analyzing different approaches and technologies, trying to find the best solution to achieve the goal. The model will have to respond to different purposes and after completion will be given to Bologna Municipality.
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