A study from the World Bank analyses the maritime capacity in the East and Southern Africa (ESA) Region, concluding that although freight volumes have been growing at 9 percent per year through some of the key ports (with transit consignments to land-locked countries growing at 16.5 percent per year until relatively recently), many of such ports are still affected with high ship waiting times, high berth occupancies, and congestion on both the land and maritime side, all factors contributing to increased transport costs.