Publications / 2024 Proceedings of the 41st ISARC, Lille, France
This study investigates factors affecting construction productivity in unmanned construction, a method developed in Japan for safely conducting recovery operations post-disaster using remotely operated machinery. Despite its widespread adoption, unmanned construction is typically less efficient than conventional methods. This research aims to identify and quantify the causes of this reduced efficiency. Experiments were conducted using a hydraulic excavator in various operation environments, from manned to remote, focusing on visual information, operation interface, sensory information, and image display. The results reveal that the main factors decreasing productivity are differences in visual information for situational awareness and operating interface, with the former having a slightly greater impact. Sensory information and image display differences were found not to be major contributors. The findings are specific to tasks similar to the model task used in the study and suggest the need for further research under various construction conditions to enhance productivity in unmanned construction, which is vital for disaster response and regular construction site productivity.