특수목 조경 설계 검토 단계에서의 혼합현실 도입 가능성에 관한 연구

초록

Information asymmetry is the biggest reason for variations and change orders in the field of construction. These issues lead to increased construction period and cost, legal claims, and disputes. Especially, the design of a special tree is difficult for clients to perceive the description of the tree due to the limited experience and information. Consequently, designers have used representation tools such as 2D CAD or BIM to make their proposals easier for clients to understand more intuitive. However, existing representation tools require professional knowledge and the ability to imagine or shape the information, which intensifies difficulties in communication between practitioners and clients. Thus, more immersive realistic models in virtual-reality or mixed-reality environments are applied in the design review process to support decision-making. In this study, the mixed reality was introduced to determine whether it could be used as a representation tool while supporting the client’s special tree design decision-making. To verify this hypothesis, an experiment, about the installation of a special tree in the landscape design review phase, was conducted to compare mixed reality with the 2D CAD drawing plans, which is the representative design proposal representation. In addition, 12 questionnaires are classified by each category, understanding of space, understanding of greenery, and decision-making supporting. Mann-Whitney U test and paired t-test were conducted to analyze the significance between previous representation tools and mixed-reality about the understanding of space, design, and greenery. In addition, the correlation between understanding and decision-making support for landscape design review was analyzed by applying the Pearson correlation coefficient. As a result, it was found that mixed-reality is more intuitive and easier than 2D CAD drawings to understand essential information such as spatial, design, and scale information in the design review phase of a special tree. Even with the technical limitations of tactility visualization in mixed-reality, quick introduction of this innovative tool would support clients to determine the size and installation location of a special tree.

키워드