Optimization of Extended Hub-and-spoke Regional Port Transportation Networks with Interval Cost Parameters
In regional port transportation networks,the ports are connected by dkect transports or via a transshipment port.This has led to the formation of hub-and-spoke networks in regional port transportation industry.Cargoes from original ports are usually consolidated at hub port and shipped to different destination ports.Hub-and-spoke transportation can be classified into two types:pure and extended.The pure hub-and-spoke transportation network is characterized by transshipment in which direct transport between Dorts is excluded and all cargoes have to be transported through a hub port.The extended hub-and-spoke transportation network consists of direct transportation between ports and transshipment via the hub port.Based on extended hub-and-spoke regional port transportation network,a model is introduced for regional port transportation network optimization problem where the cost coefficients of the Obiective functions are expressed as interval values.The proposed model aims at minimizing the total costs including the transportation cost between two ports and handling cost occurring at ports.Meanwhile it optimizes the following factors:cargo transportation volume andcorresponding transportation capacity via a hub port from an original port to a destination port,cargo transportation volume and corresponding transportation capacity directly from an original port to a destination port.Based on preference relations between intervals,the proposed model can be solved by transforming it into an equivalent deterministic two-objective linear programming model that can be solved by goal programming or fuzzy programming.At last,a numerical example is given to demonstrate the effectiveness of the proposed model.
Hub-and-spoke Optimization Port transportation network
Wang Chuanxu
School of Economy and Management,Shanghai Maritime University,P.R.China,200135
国际会议
2006 Interntional Conferecne on Management of Logistics and Supply Chain(2006物流与供应链管理国际研讨会)
长沙
英文
127-133
2006-09-20（万方平台首次上网日期，不代表论文的发表时间）