Introduction Since the 1970s, the containerization of cargo has rap-idly increased. With the rapid development of con-tainer transport, container shipping lines have devel-oped from simple “point-to-point” operations to the present complicated shapes with “multipoint composi-tion” and multiple structures. At the same time, the Introduction Since the 1970s, the containerization of cargo has rap-idly increased. With the rapid development of con-tainer transport, container shipping lines have devel-oped from simple “point-to-point” operations to the present complicated shapes with “multipoint composi-tion” and multiple structures. At the same time, the