A Questionnaire-Based Analysis of Drone Utilization for Construction Supervision in Reinforced Concrete Works

This study develops a survey-based and procedure-oriented guideline for the application of drones in the supervision of reinforced concrete works to address the limitations of conventional supervision methods, including limited accessibility, safety risks, and subjectivity in inspection. Data were collected through a literature review and an expert survey and were analyzed using descriptive statistics and multiple regression analysis. The results identified key considerations for drone implementation, including regulatory compliance, clarification of expected effects and return on investment (ROI), integration with building information modeling (BIM), drone safety functions, operator competence, and data quality. Drones were perceived to be particularly suitable for construction processes requiring precise inspection in high-elevation or hard-to-access areas. Based on these findings, a five-phase drone-based supervision guideline was proposed, consisting of pre-planning, data acquisition, data analysis, inspection review and corrective action, and post-management. This study presents a survey-based, procedure-oriented framework that can support the objectivity and safety of construction supervision and highlights the need for future validation through pilot applications in actual construction projects.