DEVELOPMENT OF A VIRTUAL REALITY (VR) MODEL FOR BUILDING CONSTRUCTION INSPECTION

Abstract

Building construction inspection is a complex process involving multiple stakeholders. Conventional two-dimensional (2D) drawings have limitations in communication and spatial understanding, which may lead to discrepancies during inspection. Virtual Reality (VR) technology enables the creation of immersive three-dimensional environments with real-time interaction, allowing users to inspect details and evaluate construction accuracy more effectively. This study aims to 1) develop a VR-based model for building construction inspection and 2) identify the key factors influencing its implementation and determine the most appropriate approach. A 3D model was developed from 2D drawings using AutoCAD and SketchUp and integrated into a VR environment using Unity. The model was further optimized to improve visualization performance and ensure spatial accuracy. The Analytical Hierarchy Process (AHP) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) were applied based on data collected from 30 experts. The results indicate that personnel capability is the most influential factor (0.454), followed by usability (0.234), software and hardware (0.164), and organizational factors (0.148). The combined 3D and VR approach was identified as the most suitable method (0.930). The findings demonstrate that VR can enhance construction inspection by improving spatial understanding, reducing errors, and supporting effective decision-making.

Keywords: Virtual Reality (VR), Construction Inspection, 3D Simulation