On modern automated container terminal now a days the transport between STS area and stack area takes place by either AGVs (Automated Guided Vehicles) or SHC (automated shuttle carriers / autostrads).
The most important difference between those two concepts is coupling or decoupling of the transfer process.
An important similarity is the fact that both concepts occupy a transfer area of about 100 meters wide parallel to the quay. In our search to minimize this big space occupation we came to the idea of a ML-RM-SHC concept (Multi Level – Rail Mounted – Shuttle Carrier). That multi level horizontal transport parallel to the quay in combination with the two level transport by the OHBC stack cranes perpendicular to the quay has many advantages:
- Strong reduction of space occupation.
- Substantial increase of stack capacity.
- Strong reduction of transport distances.
- Reduction of the number of transport devices.
- Little crossings at the same level.
- Faster handling / higher performance.
- Less energy consumption.
As one can see this in the following animation.