Study On Optimization Of Container Transportation Considering The Waiting Time

The multimodal transport of container multimodal transport is widely recognized by multimodal transport operators or shippers.Multimodal transport can not only meet the diversified transport needs of shippers,but also reduce the transportation costs by using different modes of transport.At present,China's container multimodal transport most of the use of sub-decision-making model,multimodal transport operators in the transport network to develop and select the optimal path of the same time may face from other transport mission needs interference,therefore,from a global perspective on multi-The research and processing of multimodal transport path optimization in inland containers is closer to the transportation needs in real life.In the research on the optimization of multimodal transport path in inland containers,the mathematical model and algorithm are constructed for the optimal path of single transportation task,which is different from reality.Some studies consider the cost of dressing up to the station and the dressing time,that the station dressing time and dress up costs are fixed,not taking into account the number of transport tasks in the station where the facelift may occur waiting.Some studies have neglected the effect of station waiting time on the decision of the transport plan.In the paper considering the waiting time of the node,the factor analysis is more one-sided,or only the time limit of the transport flight,or the limited transport capacity.There is still a wide gap between these studies and the effective paths in the actual transport organization,especially when there are multiple transport tasks in transit nodes,and the mutual interference between different transport tasks is revealed.In this paper,due to the analysis of the influencing factors of multitasking transportation scheme,due to the limited processing capacity of the facelift node,the capacity between the different transport tasks in the facelift node leads to facelift.Changes in time lead to differences in the mode of transport and transport path selection.In this paper,by analyzing the ability of the node to occupy,calculate the different transport tasks in different nodes may occur different dressing waiting probability,the establishment of the function to calculate the multi-transport task waiting time.To determine the different number of transport tasks in different nodes of the facelift waiting time,the target makes the uniform task of the time constraints under the conditions of the total cost of transport the smallest.