Abstract
The revenue of a ship company, a terminal, a port and even the whole logistic chain largely depends on the performance of (un)loading operations inside port areas. However, they are conditioned by met-ocean agents that exert stresses on fixed structures, berthed ships and mooring systems that can affect the comfort, productivity and safety of the operations. Under extreme conditions, operations may be interrupted, producing periods of inactivity, economic losses and even jeopardizing the terminal’s reliability. Therefore, it is crucial to develop strategies for characterizing and predicting operability in docks and anchorages. The present paper aims to assess the main approaches up to date to address the operability on berthed ships and to explore present and future strategies. To accomplish this, main factors affecting the operability are reviewed and different methodologies for the characterization and calculation of operability are detailed, together with some results regarding the perception of vulnerability from the Spanish port community. Rather than aiming for generic mono-parametric thresholds, the results highlight the need for addressing this challenge in a specific way for each dock and anchorage, broadening field monitoring and considering the varied peculiarities and the specific perception and experience of main port’s actors.
Highlights
The economy of scale has fostered the increase in ship’s dimensions, demanding longer and deeper docking facilities
The availability of the information allows for an enhancement in optimization of logistics processes, the Business Intelligence (BI) and the decision-making tools, for example, by defining when anloading operation should be stopped and under what criteria
We have identified the need for widening the mono-parametric threshold approach to conditioned and n-dimensional thresholding approaches and inference models capable of addressing the high number of variables and factors involved and the relations between them
Summary
The economy of scale has fostered the increase in ship’s dimensions, demanding longer and deeper docking facilities. Together with other forcing met-ocean agents such as wind, can provoke the excessive movement of moored ships and, economic losses due to decreased operational performance Both from the design and the port’s management perspective, it is necessary to address the probability of exceedance of operational thresholds on each Area of Operational Interest (AOI, see Molina et al 2017, [2] and Gómez and Molina et al 2018, [3]), to estimate how the performance and safety of each operation may be compromised, and to characterize the number and duration of downtimes (Sierra et al 2017, [4], Camus et al, 2019 [5], Gracia et al, 2019 [6], Campos et al, 2019 [7]). As it AissfuitrtihsefruerxthpeorunexdpeoduinndSeedctiionnS3e.c5t,itohne 3o.p5e, rtahteoro’sppereartcoerp’tsiopnearcnedpstikoinllsaanldsospkliallyssaalnsoimpplaoyrstaannt rimolpe,obrteasnidt eroslael,lbtehseisdeesfaacltlotrhse, sien ftahcetoprrse, sienntthaenpdretsheennt eaanrdfuthteurneecaor nfucetuprteocfoonpceerpatboilfiotyp.eNraobtielitthy.atN, ofoter ethxaatm, fpolre,enxoatmepvleer,yncortaenveeorypecrraatnoer hoapsertahteorsahmase tpheercseapmtieonpeorfcevputlinoenraobfilvituylnaegraaibnisltitwy iangdaiancsttiown,inads wacetilol nas, athsewfealcltatshtahtenfoatcetvtherayt ncroatneeviesrydecsriagnneeids tdoebsiegnuenddetor tbheeusnadmeer wthiendsalmimeiwtaitniodnlsi.mitations
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