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Generation and Analyses of Design Schemes

Apart from information integration, the 3DPDS is geared to streamline design option
generation work. With the incorporation of the workflow of design scheme formulation,
the system has developed an application engine for generation of design schemes to facilitate
planning work, taking account of the relevant building guidelines and principles. Initial design

scheme options can be generated for scenario testing and comparison by inputting development
parameters such as plot ratio, building height, flat size, and various building types. (Figures
10 and 11). The system is also capable of performing different urban design assessments
such as sightline, viewshed, ridgeline, sunlight and shadow, flood, and skyview factor analyses

to review the impacts of the design scheme on the surrounding environment (Figure 12).
Photomontages and flythrough animations can also be generated via this platform. The
findings of these analyses will help comprehend the development proposals and hence support
the planning and decision-making process. For example, a fly-though animation video has

been generated by the system to facilitate the TPB in considering the proposed amendments of
building height restriction to the draft Causeway Bay OZP (Figure 13).

Figure 10 – Various Building Types for Design Scheme Option Generation

Figure 11 – Comparison of Design Schemes with Different Development Parameters

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