Assessing the Environmental Impacts of a Lean Supply System: Case Study of High-Rise Condominium Construction in Korea

Prefabrication and just-in-time (JIT) delivery are important components of a lean supply system. Past research focuses on how much lead time is reduced and how much costs are saved, but few have studied the environmental impacts. While most of those studies on environmental impacts have focused on select life cycle phases or specific building materials and components, the impacts of different construction methods or supply strategies from the construction phase were ignored or simply approximated. This paper presents the results of a case on the environmental impacts of prefabrication and JIT delivery strategy of rebar supply on a high-rise condominium project in Korea.