Abstract
In this study, we used market basket analysis and land accessibility for the layout of MG Steel Logistics Park. Due to the unreasonable cargo space layout, the outbound trucks in the MG Steel Logistics Park detour and transfer, which caused congestion. Using market basket analysis, this research took outbound trucks as the research object to measure the degree of correlation between cargo locations. Then, we measured the convenience of cargo locations by the accessibility and matched it with the steel outbound frequency. We established a model and got the layout allocation plan with the maximum degree of relevance and the minimum difference in cargo-location matching as the target. In the solution algorithm, we use roulette method and the elite retention strategy to improve the genetic algorithm. Finally, we compared the results before and after optimization. We found that the number of truck transfers was reduced by 33%, and the truck staying time was reduced by 21%.
Highlights
MG Steel Logistics Park is the largest one in Anhui Province, China, whose main task is to store and distribute steel
Steel has some strict storage and loading requirements: only one type of SKU can be stored in one cargo space; when loading, the priority should be sorted according to the shape and characteristics of the steel, long>short>thick>thin
Due to the unreasonable layout of cargo spaces, truck transfers from one yard to another for too many times, which results in serious congestion in the park
Summary
MG Steel Logistics Park is the largest one in Anhui Province, China, whose main task is to store and distribute steel. The park arranges the outbound plan of steel materials for pickup trucks. Steel has some strict storage and loading requirements: only one type of SKU can be stored in one cargo space; when loading, the priority should be sorted according to the shape and characteristics of the steel, long>short>thick>thin. Due to the unreasonable layout of cargo spaces, truck transfers from one yard to another for too many times, which results in serious congestion in the park. This study places highly related steels nearby to reduce truck transfer and detour times. The steel materials that are frequently out of the warehouse are arranged in a cargo location with higher accessibility to the exit to reduce the staying time of the trucks in the park
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