GeoBIM application for subsurface Modeling Torino’s Health, Research and Innovation Park project

Three-dimensional representation of subsurface condition has always been a source of issue and uncertainty. The methods in which engineers tend to represent the soil has been in an isolated environment, independent from infrastructure and existing buildings. Integration of disciplines so far has been conducted without the presence of geotechnical discipline. These issues are more tangible in the projects in which highly precise georeferenced data are needed. Tunnels, underground water distribution network, railways…modeling these projects requires accurate knowledge of subsurface conditions capable of integrate with complex infrastructure models. Building Information Modeling (BIM) was a breakthrough in design and construction industry, which enabled stakeholders to have access to 3D dynamic model enriched with constantly evolving, real time data. However, traditional models were lacked coordination with geospatial data. In recent years studies were conducted to close this gap by merging geographic information system (GIS) with building information modeling. These studies resulted in a new concept called GeoBIM; georeferenced dataoriented models. In this study, GeoBIM concept was utilized to model subsurface conditions of Parco della Salute project in Turin, Italy, currently under development on a former industrial site. Using Visual programming language, an online repository was created to aid stakeholders in decision making and site remediation process. Furthermore, four different modeling workflows were analyzed and compared using Key Performance Indicators (KPIs) to identify the most effective solution for GeoBIM implementation. The results showed the successful performance of Autodesk Revit as a BIM platform and Dynamo as a visual programming environment.