Study on Maritime Container Transportation Network including Empty Container Repositioning and Estimate of Future CO2 Emissions

摘要

CO2 emissions in 2007,2010 and 2015 and how much CO2 emissions can be reduced if maximum containership size become larger or ship speed slower down are studied by simulating a maritime container transportation network.Objective area is intra East Asia and between East Asia and North American west coast and Europe,and empty container repositioning is accounted for the network.As the study,linear programming is applied to determine the empty container flow,and the voyage network whose operating cost is minimized is simulated by genetic algorithm.Rcsult obtained shows CO2 emissions in 2010 will be 1.24 times of that of 2007 and in 2015 it will be 1.75 times of that of 2007.It was also shown that the slowdown of the ship speed only some knots is effective in not only reducing CO2 emissions but also ship operating cost.