Integrated BIM - GIS model generation at the city scale using geospatial data

Nowadays, integrated BIM-GIS applications are gaining more attention in projects related to structures and infrastructures. On the other hand, advanced tools able to simultaneously exploit advantages of both GIS and BIM are not available yet. Applications are carried out with different software, resulting in an inevitable information loss in the continuous file conversion and transfer between different software packages. The aim of this paper was to create an integrated BIM-GIS using Autodesk InfraWorks, combining the advantages of parametric modeling with geospatial datasets, and testing pros and cons of software for integrated BIM-GIS processing. The aim was to obtain a BIM-GIS model at the scale of a medium-size city. Results demonstrate that existing geospatial datasets allow one to generate preliminary models, which however require extensive manual editing to become tools for parametric modeling and simulation of infrastructures.