A comprehensive model for assessing the risk of loss of navigational characteristics in a navigable channel
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Abstract
The operational efficiency of navigable channels in delta systems is largely determined by their ability to maintain standard navigational characteristics under the constant influence of sedimentation processes, hydrometeorological factors, and morphodynamic changes in the channel bed. A deterioration in navigational parameters leads to restrictions on vessel draft, a reduction in the waterway’s capacity, and increased maintenance costs. This paper presents a comprehensive model for assessing the risk of loss of navigational characteristics in a navigable channel. The proposed model is based on the integration of factor analysis, a probabilistic approach, fuzzy logic, and dynamic risk modeling. An integrated risk index has been introduced that accounts for the influence of morphodynamic, hydrological, sedimentation, and operational factors. A decision-making criterion has been developed regarding the necessity of dredging operations based on an acceptable risk level. The results obtained can be used in the development of decision support systems for managing the operational condition of navigation channels and planning dredging operations.
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References
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