Cargo Space
Total volume of freight that a fleet or a specific vessel can carry is measured in twenty-foot equivalent units or deadweight tonnage. This shipping capacity determines the amount of space available to move goods across ocean trade lanes. Market rates respond quickly to any changes in the global supply of these slots.
Slot Availability
Carriers manage their assets by deploying vessels to routes where demand for space is highest. When shipping capacity exceeds demand, freight rates tend to drop as lines compete to fill their ships. Strategic alliances allow multiple companies to share the same vessel to maximize utilization.
Idle ships are sometimes placed in cold lay-up to reduce the active supply.
Fleet Expansion
Shipowners order new vessels years in advance to prepare for expected growth in global trade. The arrival of these ultra-large container ships adds significant shipping capacity to the water in a single event. Older vessels are often sold for scrap or moved to smaller regional routes when new technology becomes available.
Environmental regulations influence the design of these new builds by requiring cleaner engines and hull shapes. This cycle of building and scrapping keeps the global fleet in a state of constant adjustment. Analysts monitor the order book of major shipyards to predict future market conditions.
Fuel costs and labor availability also play a role in how much of this space is actually active. Carriers use blank sailings to temporarily reduce the active supply during holidays.
