Igbe ibu akọrọ, mgbe ụfọdụ a na-akpọkwa akpa ebu ibu akọrọ, abụrụla akụkụ dị mkpa nke akụrụngwa na-enye ihe. Mgbe ụgbọ njem nke intermodal akpa gasịrị, igbe ibu na-arụ ọrụ nke nnyefe kilomita ikpeazụ. Ebube ọdịnala na-abụkarị n'ihe igwe, ma n'oge na-adịbeghị anya, ihe ọhụrụ - panel mejupụtara - na-eme ka a mata na mmepụta nke igbe ibu akọrọ.