Abstract

In the past, most researchers have paid attention to the storage space allocation problem in maritime container terminals, while few have studied this problem in rail–water intermodal container terminals. Therefore, this paper proposes a storage space allocation problem to look for a symmetry point between the efficiency and effectivity of rail–water intermodal container terminals and the unbalanced allocations and reallocation operations of inbound containers in the railway operation area, which are two interactive aspects. In this paper, a two-stage model on the storage space allocation problem is formulated, whose objective is to balance inbound container distribution and minimize overlapping amounts, considering both stacking principles, such as container departure time, weight and stacking height, and containers left in railway container yards from earlier planning periods. In Stage 1, a novel simulated annealing algorithm based on heuristics is introduced and a new heuristic algorithm based on a rolling horizon approach is developed in Stage 2. Computational experiments are implemented to verify that the model and algorithm we introduce can enhance the storage effect feasibly and effectively. Additionally, two comparison experiments are carried out: the results show that the approach in the paper performs better than the regular allocation approach and weight constraint is the most important influence on container storage.

Highlights

  • With the trend of world economy and trade globalization, container transportation, regarded as one of the most significant modern freight means of transportation, has become widespread all around the world

  • In this paper, we studied storage space allocation problem (SSAP) of ICs in Rail–water intermodal container terminals (RWICTs), including container block allocation problem (CBAP) to balance the allocation of inbound containers, and container slot allocation problem (CSAP) to reduce the reshuffling operations

  • To solve the proposed two-stage model, a novel simulated annealing algorithm based on heuristics (SAAH) was introduced to solve CBAP and a heuristic algorithm based on rolling horizon (HARH)

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Summary

Introduction

With the trend of world economy and trade globalization, container transportation, regarded as one of the most significant modern freight means of transportation, has become widespread all around the world. The railway operation area is the place to store and handle containers transported by rail. SSAP usually can be decomposed into two sub-problems: one is the container block allocation problem (CBAP) and the other is the container slot allocation problem (CSAP). The former aims at balancing the number of containers in different blocks by selecting the optimal block for containers from container yards. Some experiments were proposed to verify that the model and algorithm in the paper were feasible and effective in improving the storage effect, and verified that the proposed approach was better than the regular allocation approach and weight constraint should be considered firstly in storing containers.

Literature Review
Problem Description
Figures andconsist
Overlapping Amount
Problem Formulation
Assumptions
Notations and Variables
Objective
Constraints on VDs
Constraints on TPs
Constraints
Constraints on storage positions
Solution Algorithms
Simulated Annealing Algorithm Based on Heuristics
3: Randomly allocate
Computational Experiments
Initial Setting
Small-Sized Experiments
Our Method
Large-Sized Comparison Experiments
Comparison Experiments between Different Influence Factors
Conclusion

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