The Empty Container Problem

What follows is the working version of repositioning empty shipping equipment: the decisions in the order you actually meet them, with the reasoning attached.

Why empties accumulate

A region that imports more containerised cargo than it exports ends up with more boxes arriving full than leaving full. The surplus equipment has to go somewhere, and eventually it must return to regions where export cargo is waiting.

That return journey carries no revenue cargo, so the cost is absorbed into the rates charged on loaded moves. The imbalance is structural rather than seasonal, because it reflects the composition of what each region makes and buys. It is therefore a permanent operating cost of container shipping rather than an occasional inefficiency.

The cost of moving nothing

An empty container occupies a slot on a vessel that could otherwise carry paying cargo, which is an opportunity cost as well as a handling cost. It also requires the same lifting, trucking, storage and gate transactions as a loaded box at every point in its journey. Depot storage of surplus equipment consumes land near ports where land is expensive and in demand.

Carriers manage this actively with repositioning plans, equipment forecasts and incentives to reuse boxes locally. The management reduces the cost without removing the underlying cause.

Street turns and local reuse

A street turn occurs when an importer's emptied container is passed directly to a nearby exporter rather than returned to a depot. This removes two trips to the depot and saves handling, cost and road congestion at the same time. It requires matching an import unloading with an export loading in the same area within a workable time window.

Upstream of that, carriers must approve the reuse and the equipment must be suitable and in acceptable condition for the outbound cargo. Digital matching platforms exist to arrange these, and uptake has been limited by coordination rather than by economics.

Equipment type mismatches

Surplus in one place does not help if the boxes are the wrong type for the cargo waiting elsewhere. Refrigerated units, tank containers, open tops and flat racks are all specialised and cannot substitute for standard dry boxes.

Even among dry containers, size and condition requirements can prevent an available unit from being usable. Cargo-worthy condition standards mean damaged boxes must be repaired before reuse, which takes depot capacity and time.

Equipment availability shortages therefore occur alongside visible surpluses, which looks contradictory and is not.

Leasing and ownership

Carriers own part of their fleet and lease the rest, which lets them flex capacity without owning equipment through the trough. Leasing companies operate their own repositioning economics and offer one-way moves priced to reflect where boxes are needed. Drop-off and pick-up charges at specific locations are the mechanism by which those imbalances are priced.

Shippers occasionally see these costs directly when arranging their own equipment rather than buying carrier haulage. The pricing signals are usually accurate about where equipment is genuinely short.

Tariff schedules are technical documents, and classification disputes turn on wording rather than intent.

Why it will not be solved

The imbalance reflects the underlying pattern of trade, which no logistics arrangement can change. Foldable and collapsible containers have been proposed repeatedly and have not displaced standard boxes at scale. The barriers are handling equipment compatibility, structural strength, cost and the coordination required across the industry.

On the manifest, marginal improvements in matching and reuse are achievable and are where practical effort is best directed. Treating repositioning as a permanent cost to be minimised is more realistic than expecting it to disappear.

The takeaway

Empty repositioning is priced into every loaded move. It is a feature of unbalanced trade, not a failure of logistics.

Supply chains move slowly and then all at once, mostly for unglamorous reasons.