The machines that do the rebuilding

The reconstruction discussion is conducted almost entirely in financial terms. The physical constraint is at least as binding, and it arrives sooner.

What is actually needed

Excavators and demolition machines to clear damaged structures. Crushing plants to process rubble. Concrete batching capacity near the sites, because concrete cannot travel far. Crane capacity for anything above three storeys. And trucks, in very large numbers, to move material both directions.

None of that can be imported instantly, and much of it is operated by people who must be trained.

The rubble question

Destroyed buildings produce enormous quantities of broken concrete and brick. Treated as waste, it costs money to move and to dump, and it occupies land.

Crushed and screened, the same material becomes road sub-base and fill, which the same reconstruction needs in equally enormous quantities. The economics of that conversion are good and the obstacle is equipment placement, not principle.

Doing it well also requires separation, because rubble from war damage may contain unexploded ordnance, asbestos and reinforcement steel, each of which needs different handling.

The labour side

Construction is a sector that lost workers to mobilisation and emigration simultaneously. Machine operators, welders and site engineers are the scarce categories, and vocational training in exactly those trades is therefore reconstruction policy.

The conclusion

Money that arrives faster than the capacity to spend it produces price inflation rather than buildings. Building the capacity now is what allows the money to work later.

This is directly my work. Reconstruction estimates count excavators and do not count crushing capacity, yet no site starts until the rubble has been processed. Planning a fleet the question is not how many machines but how many machines are running at the same time, and the difference between the two is a spares store and a service crew — which appears in no budget.