環境性一般

[V-73] OPTIMIZATION OF MAINTENANCE STRATEGY OF PORT MOORING FACILITIES IN TERMS OF COST, BENEFIT AND CARBON DIOXIDE EMISSIONS

〇Yuichiro Kawabata Kawabata¹, Surya Dewi Puspitasari, Ema Kato¹, Yutaka Tanaka¹, Hiroshi Yokota² (1.Port and Airport Research Institute, 2.Hokkaido University)

Keywords:Maintenance strategy, Life-cycle cost (LCC), Net Present Value (NPV), CO2 emissions

Port mooring facilities are required to be effectively maintained over their service lives to avoid facility breakdowns that adversely affect port operation. Our previous study proposed a Net Present Value (NPV) as an indicator for decision-making of comprehensive maintenance strategies for mooring facilities, based on the cost-benefit analysis. On the contrary, the environmental impact should be reduced in terms of sustainability. Reduction in CO₂ emission is strongly required for infrastructure sectors. In this context, this paper presents a trial approach to assess the maintenance strategy from the viewpoint of economic and environmental aspects.