Back in March I attended a day long workshop the at the Transport Systems Catapult (TCS) in Milton Keynes on the subject of ‘The Barriers to Building 3D Synthetic Environments’. The aim of the workshop was to bring together key SMEs and Academics to collaboratively identify challenges and discuss solutions for the creation of virtual environments that would be suitable for simulating and testing transport scenarios.
Alongside presentations from the Transport Systems, Future Cities and Satellite Applications catapults a number of SMEs also presented on topics as diverse as LiDAR data capture, GNSS positioning, 3D GIS and the use of GIS data in game engines. For my purposes the following talk on ‘The Art & Science of 3D Cities’ by Elliot Hartley of Garsdale Design was particularly interesting and raised a number of great points:
One of the key challenges for the generation and use of 3D data discussed by Elliot derives from the heightened expectation generated by the depiction of 3D urban environments in films, video games and Google Earth. The truth is the creation of these kinds of environments require considerable investment in terms of time and investment. Elliot’s talk poses key questions for stakeholders when embarking on a 3D project:
- Why do you want a 3D model?
- Do you actually need a 3D model?
- What kind of 3D model do you want?
- What 3D model do you actually need?
- Small areas with lots of detail?
- Large areas with little detail?
- How much time and/or money do you have?
- Will you want to publish the model?
- What hardware and software do you have?
- What’s the consequence of getting the model wrong?
While the primary focuses for the day were the practical and technical challenges of creating 3D environments, the further implication of Elliot’s discussion is that the use of 3D data and the creation of virtual environments can no longer be considered a purely technical activity with neutral products and outputs. For me the last question in particular foregrounded the stakes involved in moving beyond visualisation toward the growing use of 3D data in various forms of analysis. Thanks to Elliot for the stimulating talk.
After the presentations we had a tour of the TCS facilities and then broke up into work groups to discuss a number of themes. A report and summary is expected to be published by the TCS soon.