The first paradigm currently forces QCs to raise their hoists
higher than the large vessels in order to store or retrieve containers.
However, if the quay itself is designed higher, less vertical
travel would be required by the QC to position the container
for pick-up by a vehicle. Unfortunately, raising the yard to the
same level would be too expensive due to their size. Therefore,
if the seaside level is raised, transfer vehicles would have to
operate in a slope. However, when considering a storage yard
using the European layout one notices that for each seaside pick
up or deposit at the I/O the GCs has to once again lower its hoist
from 5 to 6 tiers high to the ground level. An interesting opportunity
would be to raise the level of the seaside I/O points so
that the vertical hoist travel distance is minimal. This arrangement,
at the same time, would significantly reduce the incline
angle faced by the transfer vehicles to travel between a raised
I/O point at the storage yard to a raised quay. A similar raised
landside I/O point could also be favorable. For Asian layouts,
the equivalent would be to raise the truck lane. However, for
this layout, raising the truck lane includes some physical as well
as safety challenges. Alternatively, if the quay is not raised, the
same benefit is gained if the storage yards are be lowered (partially
underground).
The first paradigm currently forces QCs to raise their hoists
higher than the large vessels in order to store or retrieve containers.
However, if the quay itself is designed higher, less vertical
travel would be required by the QC to position the container
for pick-up by a vehicle. Unfortunately, raising the yard to the
same level would be too expensive due to their size. Therefore,
if the seaside level is raised, transfer vehicles would have to
operate in a slope. However, when considering a storage yard
using the European layout one notices that for each seaside pick
up or deposit at the I/O the GCs has to once again lower its hoist
from 5 to 6 tiers high to the ground level. An interesting opportunity
would be to raise the level of the seaside I/O points so
that the vertical hoist travel distance is minimal. This arrangement,
at the same time, would significantly reduce the incline
angle faced by the transfer vehicles to travel between a raised
I/O point at the storage yard to a raised quay. A similar raised
landside I/O point could also be favorable. For Asian layouts,
the equivalent would be to raise the truck lane. However, for
this layout, raising the truck lane includes some physical as well
as safety challenges. Alternatively, if the quay is not raised, the
same benefit is gained if the storage yards are be lowered (partially
underground).
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