Title Towards a Transportation Support System for Off-site Construction : Identifying Key Functions and Diagramming Functional Blocks
Authors Lee, Gangho ; Kim, Minguk ; Lee, Chansik ; Koo, Choongwan ; Kim, Taewan
DOI https://dx.doi.org/10.6106/KJCEM.2021.22.2.021
Page pp.21-30
ISSN 2005-6095
Keywords Off-Site-Construction; Transportation; System Development View; Functional Block Diagram
Abstract The existing construction industry is classified into industries with low productivity compared to other industries. In order to solve the decline in productivity in the construction industry, the world is focusing on off-site construction (OSC), which is about 40% more productive than existing construction methods. This high productivity is possible because the three stages of production, transport to the site, and site assembly are consistently maintained in a continuous flow. This study conducted a functional survey through literature review, preliminary field survey, questionnaire, and expert interview. The surveyed function were classified into five categories: convenience, flexibility, manageability, communication, and safety, and the functional characteristics of flexibility, manageability, and communication were high. Because of the change according to the construction progress, the production schedule of the factory, and the variety of transportation time required. Finally, A functional block diagram was developed based on the 15 functions corresponding with an average score of 4 or more in the surveyed function score result. If the OSC transport system is established through this study, It can contribute to a successful construction OSC project and increase productivity.