The stack.

Containers are stored behind the wharf while awaiting delivery or loading. This part of the terminal, the stack, is managed:

  • Either by reach stackers
  • Straddle carriers
  • Rubber-tyred or rail-mounted gantry cranes (RTG and RMG).

A straddle carrier operating between the stack and the ship-to-shore area.

Link between the ship-to-shore area and the stack.

There are several possibilities:

  • The classic tractor-trailer rig. This equipment is often specially designed for port handling and cannot operate on public roads.
  • The reach stacker or straddle carrier can also move containers from the ship-to-shore area and place it directly in the stack (and vice versa for exports).

Vehicles are controlled manually for all of these methods. There are now in the major ports of northern Europe terminals equipped with automated machinery controlled by extremely sophisticated software. We can cite, as an example:

The Automated Guided Vehicle (AGV) for the link between the ship-to-shore area and the stack.

An automatically guided vehicle (AGV).

Automated Stacking Crane (or ASC) for managing the stack.

An automatically controlled gantry crane

Photo sources: Gottwald Port Technology.