Figure 2.21 demonstrates that the overall tonnage of Ro-Ro goods exceeds that of any of the other cargo types.
This recent development is unusual in the European context and demonstrates the very open nature of both economies. Figure 2.21 also illustrates that it is the unitised traffic (Lo-Lo and Ro-Ro), rather than the bulk goods, that is the source
of the growth in tonnage passing through the ports, North and South. In line with the rapid growth
in economic trade, containerised traffic over the decade to 2006 through, North and South, has increased by 125 per cent in units of TEU while Ro-Ro has increased by 70 per cent in units of vehicles (IMDO, 2007).