2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

A Statistical Analysis of the Effectiveness of Using 3D Models in Teaching Quantity Surveying Techniques

Dr. Namhun Lee
Dr. Seong-Jin Kim
Dr. Krishna Kisi, Central Connecticut State University (Presenter)

The AEC industry is shifting from 2D CAD to 3D model use.  In the coming years, every design project will be modeled using BIM.  Nonetheless, BIM is merely used as a tool to produce 2D drawing sets from 3D models.  BIM for construction is to promote collaboration through consistent information models with greater standardization.  BIM will help project managers not only streamline the design and construction processes but also add new capabilities to better serve their clients.  Quantity takeoff is one of the most critical subjects in construction engineering and management (CEM) education.  To perform a detailed quantity takeoff, it is required to review a set of drawings, create mental images of building elements, and calculate quantities of building materials.  It is often exasperating for students to convert the 2D design information into 3D mentally.  Using 3D models designated as LOD 300 or higher supports the quantity takeoff process since they address building element geometry.  The objective of this study is to investigate the effectiveness of using 3D models to teach quantity surveying techniques in education settings.  To accomplish this objective, a pilot study was carried out.  Students’ performance data were collected from four different sections of a construction quantity takeoff course.  To analyze the data statistically, an independent sample t-test was used.  After analyzing the results, some pedagogical strategies for effective use of 3D models to teach quantity surveying techniques were discussed.  The results of this study present a stepping stone towards the future of CEM education.