362
the row/column sums of the absolute values (means
the direction of the links is ignored) of existing rela-
tions are principally considered. Table 3 gives the
computed centrality values for each concept of the
problem at hand.
Table 3. Centrality values for concepts
According to the initial findings, time constraints
at port period are appeared as the most significant
matter in ISPS practice at ports. Hence, the relevant
maritime authorities need to reduce time-consuming
requirements of ISPS Code. To do so, the centrality
values and the proposed network in Figure 1 can col-
laboratively be utilized. Just to name a few under-
lined issues in detail, the current procedures for se-
curity plan and essential visitors’ control can be
revised. Relevance to ensure collaboration between
maritime shareholders, the compliances between
MARSEC levels for ships and port authorities need
to be rearranged. In addition, the influences of ex-
pectations from shipboard personnel, which increase
the crew fatigue and stress, should clearly be elimi-
nated. In respect to the centrality values of concepts,
a number of enhancement strategies with priorities
towards ISPS Code practice at ports can be suggest-
ed to maritime authorities.
4 CONCLUSION
Ensuring regulatory compliances with participations
of different shareholders in maritime industry is one
the focal issue. An effective maritime legislation ex-
tremely depends upon the consensus among the
market players and relevant international authorities.
Specifically, this paper mainly deals with exploring
the potential influences of the ISPS code practice at
marine ports. Hereto, a number of industrial feed-
backs on ISPS practice at ports, which pictures a so-
cio-technical phenomenon, are gathered. To solve
this kind of dilemmas, analytical techniques are gen-
erally inadequate for dealing with interrelationships
or causalities among a set of individual and social
concepts. Instead, this paper used cognitive maps to
cope with this type of causalities. It underlined some
hints to support probable revision efforts on ISPS
Code from an interdisciplinary viewpoint. The pro-
posed decision analysis based on a cognitive map-
ping approach ensured an invaluable findings and
straightforward roadmap for the further studies on
enhancement of maritime security.
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