AbstractThe task of transport management is to organize the transportof goods from a number of sources to a number of destinationswith minimum total costs. The basic transportation modelassumes direct transport of goods from a source to a destinationwith constant unit transportation costs. In practice, however,goods are frequently transported through several transientpoints where they need to be transshipped. In such circumstancestransport planning and organization become increasinglycomplex. This is especially noticeable in water transport.Most of the issues are directly connected to port operations, asthey are the transshipment hubs. Since transportation is under anumber of influences, in today 's turbulent operating conditionsthe assumption on fixed unit transportation costs cannot betaken as realistic. In order to improve decision making in thetransportation domain, this paper will present a stochastictransshipment model in which cost estimate is based on MonteCarlo simulation. Simulated values of unit costs are used to devisean adequate linear programming model, the solving ofwhich determines the values of total minimum transportationcosts. After repeating the simulation for a sufficient number oftimes, the distribution of total minimum costs can be formed,which is the basis for the pertinent confidence interval estimation.It follows that the design, testing and application of thepresented model requires a combination of quantitative optimizationmethods, simulation and elements of inferential statistics,all with the support of computer and adequate software.
D. R. Anderson, D. J. Sweeney, T. A. Williams: '~n
Introduction to Management Science: Quantitative Approaches
to Decision Making', lOth Edition, West Publishing
Co., St. Paul, 2003.
N. <;omez, K. E. Stecke, M. <;akanyildirim: 'Virtual
Pooling Considering Transshipment Lead Time ',
Y. T. Herer, M. Tzur: 'The Dynamic Transshipment
http: I /www.eng. tau.ac.il/ -tzur/dynamictrans. pdf
F. S. Hillier, G. J. Lieberman: 'Introduction to Operations
Research', Eighth Edition, McGraw-Hill, New
V. G. Kulkarni: 'Modeling, Analysis, Design, and Control
of Stochastic Systems', Springer-Verlag, New York,
N. Majdandzic: 'Primjena racunala ', Sveuciliste Josipa
Jurja Strossmayera u Osijeku, Strojarski fakultet u Slavonskom
Brodu, Slavonski Brod, 1996.
D. Ozdemir, E. Yiicesan, Y. T. Herer: '~ Monte Carlo
Simulation Approach to the Capacitated Multi-Location
H. A. Taha: 'Operations Research -An Introduction ',
Seventh Edition, Prentice-Hall, New York, 2003.
S. Takakuwa, T. Fujii: '~ Practical Module-Based Simulation Model for Transshipment-Inventory System ',