Le fortificazioni urbane di Alghero. Documentazione carto-grafica dell’evoluzione storica

Historical cartography represents an essential documentary resource for understanding territorial and urban transformations. This study examines the evolution of Alghero’s fortifications through an in-depth analysis of twelve maps covering three centuries. The maps, sourced from various archives, document architectural and urban changes linked to technological advances and the different dominations that have influenced the city. The methodology adopted combines the reading of the maps through georeferencing and digital redrawing. The overlaying of historical maps has allowed for detailed documentation of the transformations in the urban defensive system. The results highlight the importance of the fortifications in determining the city’s development, from its medieval configuration to its twentieth-century expansion, providing a framework for conserving and enhancing Alghero’s fortifications to further historical understanding and promote informed management of cultural heritage.