A Case-based Stowage Planning System
Author(s)
S. Nugroho
Abstract
The computer support in stowage planning today is limited to the calculation of
the state of the ship, e.g. concerning the ship's stability and strength or hazardous
cargoes check. Stowage planners have to perform the core of the planning
process manually. The growing size of container ships and the tight shipping
schedule illustrate the increasing burden to the planners and its risk. A new
method for semi-automating the process of stowage planning, called Casestow,
is proposed. Casestow encompasses the difficulty of knowledge acquisition of
stowage planning. It assists the planner in creating a stowage plan by
remembering how a similar planning problem was solved.
Keywords: stowage planning, container shipping, case-based reasoning,
knowledge acquisition problems.
1 Introduction
Stowage planning problems are as old as the history of the ship itself. It is the
task to allocate containers to be loaded to slots on board the ship. In spite of the
advancement of the information technology, where computers have become
indispensable to conduct daily planning tasks, the core process of planning,
namely creating the plan itself, is still performed manually. The planner still has
to create the plan himself, then when the plan is finished he checks if the criteria
are met or not.
Today stowage planning software provides powerful modules which enable
the planner to obtain information on the state of the ship and its cargoes
concerning the stability, strength, dangerous cargoes, crane split, draught, trim
and visibility check. Those modules expedite the calculation tasks. If the plan
shows that the ship does not have a sufficient static stability, for example, the
user is not assisted with any help as to what to do, which containers have to be
Keywords
stowage planning, container shipping, case-based reasoning,
knowledge acquisition problems.
Related Book
Other papers in this volume
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