Heritage-BIM approach for Historical Urban Pavements: the case study of Via Duomo in Naples

The growing necessity to recover and digitally represent heritage infrastructure, has led the experts to face the challenge of choosing different Building Information Modeling (BIM) platforms that will be used to manage the implementation of the semi-automatic design and the reconstruction processes of reverse engineering modelling. The approach to the integrated management of information derived through Heritage-BIM (H-BIM) has been applied to Via del Duomo, one of the main roads in the old town of Naples, Italy. During preliminary inspections of the construction site, it was possible to acquire geometric features and stratigraphic information as well as conducting a photographic survey with 1618 photographs collected. Subsequently, the acquired data were processed, using different BIM-based tools and choosing Dynamo as the optimal one, in order to obtain the 3D mesh and, consequently, converting objects from pure graphic solids into parametric entities by proposing a specific algorithm. Then, a library, with the inclusion of all the possible stone paving package alternatives, including all the structural and stress-deforming characteristics such as Young Modulus (E), Poisson coefficient (n) and Safety factor (SF), was created. In this way, is possible to associate to the generic element, the optimal solution, as pavement package, depending by the different construction context. As preliminary result, a tool is proposed to support the prioritization of any existing Pavement Management System to plan maintenance operations on the road network and also to provide information as an alert system identifying what does not work in maintenance operations.