A new fuzzy knowledge-based optimisation system for management of container yard operations

Ammar Al Bazi*, Vasile Palade, Ali Abbas

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Managing the container yard operations can be challenging as a result of various uncertainties associated with storing and retrieving containers from the yard. These associated uncertainties occur because the arrival of a truck to pick up the container is random, so the departure time of the container is unknown. The problem investigated in this paper emerges when newly arrived containers of different sizes, types and weights require storage operation in the same yard where other containers have already been stored. This situation becomes more challenging when the time of departure of existing container is not known. This study develops a new Fuzzy Knowledge-Based optimisation system named 'FKB_GA' for optimal storage and retrieval of containers in a yard that contains long stay pre-existing containers. The containers' duration of stay factor is considered along with two other factors such as the similarity (containers with same customer) and the quantity of containers per stack. A new Multi-Layered Genetic Algorithm module is proposed which identifies the optimal fuzzy rules required for each set of fired rules to achieve a minimum number of container re-handlings when selecting a stack. An industrial case study is used to demonstrate the applicability and practicability of the developed system.

Original languageEnglish
Article number2150003
Number of pages28
Journal International Journal on Artificial Intelligence Tools
Issue number2
Publication statusPublished - 26 Mar 2021

Bibliographical note

Publisher Copyright:
© 2021 World Scientific Publishing Company.


  • 'ON/OFF' strategy
  • container yard operations
  • Fuzzy knowledge-based model
  • fuzzy rules
  • multi-layer genetic algorithm


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