Ship allocation plan creation method, ship allocation plan creation device

摘要

PROBLEM TO BE SOLVED: To create a plan for allocating vessels from a plurality of shipment points to a plurality of destinations with stable supply of materials and minimization of transportation costs.SOLUTION: A vessel allocation plan creating apparatus 3 sets restrictions as a restriction of consideration of navigation days and loading time upon moving a certain point to another point, a restriction of consideration of a possible amount of loading of a vessel, and a restriction of determination of loading contents and discharging contents for the vessel with satisfying demands of each region, sets at least demurrage fee as an evaluation function, represents these restrictions and the evaluation function in the form of equations, creates an optimization model which minimizes the evaluation function, and creates a vessel allocation plan by solving the optimization model by a mathematical optimization method based on the restrictions.SELECTED DRAWING: Figure 1