This report presents a way of structuring and visualising geospatial data and their corresponding semantics and metadata in a Precinct Information Model (PIM). The datasets obtained from UNSW Estate Management (EM) are used in this development. The study is completed through several steps involving pre-processing and storage of data, along with web-based visualisation.
This report presents the steps to create 3D models from different datasets, their organisation in a database management system (PostGIS) and their visualisation in Web-based environment (Cesium). The proposed system architecture, software tools and algorithms convergingly demonstrate that a large number of different datasets for a precinct area can be streamed, using international standards, into unified data structure. Such structuring allows access to the data from frontend software with standard components. The entire process from data collection to visualisation has also exhibited a number of challenges. Many datasets are 2D and automatic procedures are needed to create 3D models. In this project the authors have created a 3D model from 2D footprints and an existing DTM. In this procedure the height of the buildings can come from different data, such as point clouds, OSM, or other 2D datasets.
Industry misconceptions around high cost and poor market interest in energy efficient homes continue to obstruct the mass adoption of low carbon housing. Josh’s House demonstrates that low carbon housing is accessible and cost effective. The Star Performers series showcases how...Read more
A rapid review on green-rated office buildings, and their operational energy use, found that the conclusions of six studies ranged from the certified buildings performing worse, similarly or much better than the non-certified buildings in terms of energy usage intensity. Two...Read more
In response to feedback, high-income households can reduce their energy use to a larger degree than low-income households (17% vs 3% reduction). This and other insights were gained by two rapid reviews into research, both Australian and International, on digital services and...Read more
Precinct Information Modelling (PIM) describes the process of creating a virtual 3D model at precinct scale, defined as a special region in built environment. PIM contains all the information pertinent the given precinct held in different data type and supports the process of management and analysis.
This report presents results of inventory of the administrative structure of UNSW Estate Management (EM), software used, datasets and their content. The study was completed via interviews with employees of EM, and by examination of several datasets provided by Facility Management (FM) department.
The finding can be summarised and considered for PIM as follows:
3D modelling of precincts and cities has significantly advanced in the last decades, as we move towards the concept of the Digital Twin. Many 3D city models have been created but a large portion of them neglect representing terrain and buildings accurately. Very often the surface is either considered planar or is not represented.
This technical investigation canvases a range issues concerned with the development of a PIM Object Library, specifically to address carbon management, though the principles could be applied within a broader context. It deals with: