The 159th ITS professor Prof Dr Eng Ir Ahmad Rusdiansyah MEng is delivering a scientific oration entitled Logistics Transportation and Distribution: model development, algorithms, and computer applications

ITS Campus, ITS News – In this era, transportation and distribution are the two main functions in the logistics system. This prompted the Professor of the Institut Teknologi Sepuluh Nopember (ITS), Prof. Dr. Eng Ir Ahmad Rusdiansyah MEng, to research solutions to transportation and distribution logistics problems in the form of developing models, algorithms, and computers.

Through his inaugural scientific oration, the professor from the Department of Systems and Industrial Engineering said, the scientific oration entitled “Transportation and Distribution: Development of Models, Algorithms, and Computer Applications” aims to answer logistical problems in various modes of transportation. The transportation modes in question include land, sea, air, and multimodal. “Besides that, this scientific oration also answers several problems related to the supply chain,” said the man who is often called Doddy.

He continued that the research methodology used in this scientific oration included six stages. These stages include real problems, system modeling, algorithm development, application prototype development, experiments, and conclusions. From these six stages, three typical research outputs are produced; logistics and supply chain management, operation research, and software engineering.

This Surabaya-born man admits to having made four scientific contributions consisting of the Model Inventory Routing Problem (IRP), Container Loading Problem (CLP), Contemporary Scheduling Problem, and Supply Chain Management. The Model Contribution (IRP) itself is further grouped into two; the Integrated Inventory and Periodic Vehicle Routing Problem with time windows (IPVRPTW) Model and the IRP Model for Contemporary Problems.

The Paint Separator Technology Flow was created using the IPVRPTW Model

IPVRPTW is a development model that aims to determine the optimal frequency and new combinations of visits. Limitations on this model include vehicle capacity, time windows, and route duration. In the research conducted, this model was applied to three problems; cement distribution, paint distribution, and gas distribution in cylinders.

Meanwhile, the ITP model for computer problems itself is a model that aims to solve logistics distribution problems that often occur at this time.

In addition to contributions in the form of an IRP Model, there is also a CLP that contributes to the packing cargo into containers process. CLP aims to maximize the amount of cargo loaded while still considering the limitations, i.e. basic geometry, weight capacity, stacking, and vertical stability. “With this model, the arrangement of goods in cargo can be visualized easily,” he said

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Visualization of the model for the arrangement of goods in cargo by CLP

The third idea that contributes to world scholarship is the Contemporary Scheduling Problem. In this idea, five schedules are consisting of train schedules, crane operation scheduling, aircrew and pilot scheduling, drone scheduling, and crop rotation scheduling. The five schedules review logistical problems that often occur at this time.

The last contribution initiated in this scientific oration is in the field of supply chain management. In supply chain management, Doddy developed three research models, namely the Joint Economic Lot-Sizing Problem (JELP), and the Predictive Analytics Model. “With these three models, several problems in the supply chain field can be resolved,” said Doddy. (ITS PR)

Reporter: Ahmad Farhan Alghifari

Translator: Hanifah Inayah