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February 2nd, 2015 6:00 PM   to   8:30 PM

The evening will feature three talks about the current state of, and future directions for, 3D GIS.

Daniel Irwin, Geospatial Lead at Crossrail: 3D or not 3D, is that the question?
Crossrail is engaged in the largest infrastructure project in Europe and, in order to deliver value for money, the use of Building Information Modelling (BIM) is critical to reducing cost and improving quality within a safe working environment. Integral to this BIM Strategy is the development of a virtual railway, a three dimensional, real world representation of the Crossrail infrastructure intended for use in all elements of the asset’s lifecycle, from design and construction through to operation and eventual decommissioning. However, is it necessary to incorporate 3D into GIS to support this endeavour? The presentation will delve into the justification for 3D GIS, to explore the relationship between BIM and the geospatial industry, and to give insight into the benefits of 3D. It will address the challenges present within Crossrail in linking BIM and GIS, identify solutions that have brought the industry forward, and outline those challenges that still remain for both Crossrail and the geospatial community at large.

Claire Ellul, Lecturer in GIS at University College London: Putting 3D GIS on our Desktop
Despite advances in hardware, software and data, and research into 3D GIS spanning more than two decades, when you open a traditional desktop GIS you still see a 2D map, and much of web mapping is also 2D. This talk will outline the research challenges remaining to achieve full 3D GIS on the desktop, such as editing and topological queries. We will also introduce the prototype Lacuna project, an online 3D GIS based on the Open Source Three.js tools and the PostGIS database, where some of the missing functionality is being developed.

Kelvin Wong, Engineering Doctoral Researcher at University College London: “What Should We Map? – 3D GIS for navigation”
No longer bound by traditional 2D physical representations, there is a steady shift towards three-dimensional (3D) data. Existing research recognises landmarks to be important navigational but specific geometric and semantic attributes in 3D have not been identified. This study offers a user-centred investigation into assessing of the saliency of environmental objects which facilitate pedestrian navigation. A novel real-world navigation experiment using Google Glass is carried out with fourteen participants. Results show geometric and semantic detail for navigation are most pertinent between 1.65 – 7.5m for buildings. Visual characteristics such as colour, shape and texture are more relevant than function and use.

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