특수목 조경 설계 검토 단계에서의 혼합현실 도입 가능성에 관한 연구

Abstract

본 연구는 클라이언트와 건설 전문가간에 발생하는 정보 불균형을 완화하기 위한 방법으로 혼합현실이 클라이언트를 지원하는지 검증하는데 있다. 현실환경과 가상환경을 직관적으로 상호작용하는 혼합현실 기술을 도입하여 사용자들이 기존 설계 검토와 유의한 차이가 있는지 검증하고자 한다. 이를 검증하기 위해 독립변수를 설계 제안 지원 매체로 설정한 후 선행 연구를 토대로 설문 항목들을 작성하였다. 참가자들의 설문 결과를 토대로 t-검정과 pearson 상관 분석을 통해 혼합현실이 기존 설계 제안보다 효과적임을 입증하였다.;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.