Asset data harmonisation stage III: BIM IFC alignment review

This report compares the Austroads Data Standard with buildingSMARTS’s IFC4 and Uniclass 2015. All are works in progress. The Data Specifications Inventory of 32 object classes within Austroads’ draft standard (Draft 2 Version 2 which is to be published in the first half of 2018) has been mapped as far as possible to buildingSMART’s IFC4 Add2 and to the UK Government’s Uniclass 2015. This reveals gaps and inconsistencies in all three documents, which need to be addressed as roads infrastructure asset management, across the asset lifecycle, moves towards adoption of Building Information Modelling (BIM). The report recommends that Austroads revises its Data Standard, and contributes to the development of IFC Infrastructure (which is developing more physical objects in the realm of infrastructure), and of Uniclass 2015 (which does not yet include a Properties table). Contributions from industry bodies such as Austroads are welcomed by both buildingSMART and the NBS team managing the development of Uniclass 2015.