Modified A-star algorithm for modular plant land transportation

Nam Kyu Kang, Ho Joon Son, Soo Hong Lee

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Many common path optimization algorithms are available. However, problems arise when a general route optimization algorithm is applied to land transportation of large cargo, such as a modular plant. The large and heavy structure of a modular plant can lead to a loss of time depending on the curve of the road. This problem is more critical when traveling through large turns, which may also cause mechanical problems. Therefore, curves are essential parameters for modular plant land transportation. In this research, we show the importance of angles in the path via multi-body dynamic simulations and finite element analysis. Based on these results, we constructed a pathfinding algorithm that considers the importance of angles. The traditional A-star algorithm considers only distance as a cost, whereas our modified A-star algorithm considers both distance and angle as costs. Our goal is to improve traditional A-star algorithms and optimize them for modular plant land transportation.

Original languageEnglish
Pages (from-to)5563-5571
Number of pages9
JournalJournal of Mechanical Science and Technology
Issue number12
Publication statusPublished - 2018 Dec 1

Bibliographical note

Funding Information:
This work was supported by the Technology Innovation Program (Project Number: 10082577) from by the Ministry of Trade, Industry & Energy (MOTIE, KOREA).

Publisher Copyright:
© 2018, The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature.

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering


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