Abstract
A modular system uses a construction method which the structure is manufactured in factories and assembled on site. In particular, conducting most of manufacturing process at the factory makes it possible to obtain consistent quality of the materials and finish the project within constrained time. Moreover, high factory production rate leads to a decrease of field production rate; and the decrease in field working hours would drive down the task difficulty which is affected by bad external environmental factors. Hence, optimized factory production system is essential to maximize these advantages of system and smooth production flow by repetitive production of modular units. This paper aims to suggest optimized construction process in a factory production stage using the DSM (Dependency Structure Matrix) which can consider construction information flow among activities. For this, it is necessary to identify modular as-is process and activities, and attempt to derive optimization of modular unit process. Then, to validate effectiveness of this study, this methodology was applied to the real modular factory. As the result, it reduced about 50% of information transfer compared to original. Also, with one way direction of construction flow, it reduced the possibility of production delay and rework. Thus, this paper is expected to produce activity information flow smoothly in a factory production stage and reduce rework.
