eres2010_130_Henneberry_MODELLING_THE_RELATI(7)

The paper describes the development and application of physical-financialmodelling techniques to the analysis of relations between development design –covering the broad characteristics of a scheme, such as land use mix, developmentdensity and built form – and financial viability. It is divided into two parts

visualization model for real time visualization. This step involved fitting the site model to its actual location within the larger model, and then, if required, increasing the level of detail of the site model; for example, by adding vegetation or through the application of more realistic surface textures. An example of this is shown in Figure 32.

Figure 3: Visualization of the ‘Streets’ Redevelopment Option in Simmetry3d

Urban form designed by Laurence Pattacini

The approach adopted for linking the visualization model and the financial appraisal system has several advantages. Firstly, linking to site design models produced early in the overall visualization process (in SketchUp), means that experimentation with site layout and land and building use can be undertaken without the need for the more time consuming detailed visualization steps. Secondly, by creating models that are compatible with the real-time visualization software, site designs can be incorporated easily into the more detailed visualization model to allow for real-time walkthrough visualization. On-going research is looking at how the modelling and categorisation can be achieved within the visualization system. This should provide a faster step between experimentation with site layout and categorisation and real-time walkthrough within the more detailed model. Finally, financial appraisal of the initial designs (produced in SketchUp) is almost instantaneous and informs the selection of those options to be subject to more detailed visualization. With the development of the faster linkage between Simmetry3d, SketchUp and the appraisal spreadsheet, similarly speedy analysis of the financial implications of detailed design changes will be possible. 2 In order to allow easier interpretation of the transition from SketchUp to Simmetry3d, the basic representation of the proposed development is presented here.