ABSTRACT
The adoption of the openBIM approval process enables the use of new technologies that were limited or impossible to implement with previous 2D submissions. Augmented Reality (AR), Virtual Reality (VR) and Extended Reality (XR) are among these technologies, and the openBIM approval process opens up new applications within the authority. Approval processes traditionally based on two-dimensional plans often face difficulties in communicating between experts and non-experts. AR, VR or XR add value by providing three-dimensional visualisations of construction projects that enhance spatial understanding and improve transparency for all stakeholders. The visualisation of proposed buildings in an urban context helps citizens to better understand building projects, reduces potential objections and thus shortens the approval process. Extended application scenarios include assisting authorities in monitoring construction sites. This chapter provides an overview of current use cases, challenges and future prospects for the use of AR, VR and XR in openBIM building permits and highlights the potential of these technologies to transform public administration processes.
