Fu, T. and Zhang, Y., 2020. Optimal decision model design of diversified port investment. In: Yang, Y.; Mi, C.; Zhao, L., and Lam, S. (eds.), Global Topics and New Trends in Coastal Research: Port, Coastal and Ocean Engineering. Journal of Coastal Research, Special Issue No. 103, pp. 159–162. Coconut Creek (Florida), ISSN 0749-0208.

In order to solve the problem of low profit in the traditional optimal decision model of diversified port investment, a new optimal decision model of diversified port investment is designed. Firstly, the investment decision -making index system of major stakeholders is constructed, in which the major stakeholders include the government, investors, creditors, contractors, operators, and so on. Carry on hinterland area analysis and hinterland goods quantity forecast. Then, the constraints of the optimal decision model for diversified port investment are determined, including cost-benefit constraints, ecological carrying capacity constraints, supply and demand constraints, integer programming constraints. Finally, the optimal decision model of diversified port investment is constructed according to the given constraints. The model consists of demand forecasting module, income module, cost module and investment and financing module. In order to prove that the profit performance of the optimized decision model is good, the traditional model is compared with the model. The experimental results show that the model is better than the traditional model.