Abstract
Site planning and building design results are generally managed in Geographic Information System (GIS) and Building Information Modeling/Model (BIM) separately. The incompatibility of data has brought potential challenges for the assessment and delivery of the results. A data integration and simplification framework for improving site planning and building design is proposed in this paper. A BIM-GIS integrated model with a multi-scale data structure is developed to link the results of site planning and building design together. Geometric optimization algorithms are then designed to generate simplified building models with different levels of details (LODs) based on the information required at each scale. This paper provides a feasible way to integrate planning and design data from different sources to enhance the evaluation and delivery of the results. The proposed approach is validated by a village construction project in east China, and results show that the method is capable to integrate site planning and building design results from different platforms and support seamless visualization of multi-scale geometric data. It is also found that a seamless database facilitates understanding of planning and design results and improves communication efficiency. Currently, the main limitation of this paper is the limited access to 3D real-world data, and data collection techniques like point cloud are expected to solve the problem.
Highlights
Site planning and building design are two closely related stages in a building construction project
The proposed approach is validated by a village construction project in east China, and results show that the method is capable to integrate site planning and building design results from different platforms and support seamless visualization of multi-scale geometric data
The geometric optimization algorithm proposed in this paper aims to generate building models with multiple levels of details (LODs) corresponding to different scales
Summary
Site planning and building design are two closely related stages in a building construction project. The task of site planning is to determine the optimal location of the building to achieve the coordination of convenience, resident comfort and harmony with natural landscapes [1]. The subsequent building design stage focuses on the arrangement of spaces and building components to create a safe and livable structure. In a typical construction workflow, the planning result of site selection is an important reference for architects to design buildings [2]. The placement of windows is suggested to be based on the ventilation conditions at the site to take full use of natural winds [3]. The daylighting conditions are used to arrange the orientation and layout of the building to reduce light consumption [4]. The neighborhood conditions, including prosperity and accessibility, will have a major influence on the design of the floorplan [5]
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