Explanation and Speedup Comparison of Advanced Path-planning Algorithms Presented on Two-dimensional Grid

  • Petr Soustek Institute of Automation and Computer Science, Brno University of Technology, Czech Republic
  • Radomil Matousek Institute of Automation and Computer Science, Brno University of Technology, Czech Republic
  • Jiri Dvorak Institute of Automation and Computer Science, Brno University of Technology, Czech Republic
  • Lenka Manakova Institute of Automation and Computer Science, Brno University of Technology, Czech Republic
Keywords: Path planning, Route planning, JPS algorithm, Subgoal algorithm, A* algorithm, Dijkstra's algorithm

Abstract

Path planning or network route planning problems are an important issue in AI, robotics, or computer games. Appropriate implementation and knowledge of advanced and classical path-planning algorithms can be important for both autonomous navigation systems and computer games. In this paper, we compare advanced path planning algorithms implemented on a two-dimensional grid. Advanced path planning algorithms, including pseudocode, are introduced. The experiments were performed in the Python environment, thus with a significant performance margin over C++ or Rust implementations. The main focus is on the speedup of the algorithms compared to a baseline method, which was chosen to be the well-known Dijkstra's algorithm.
All experiments correspond to trajectories on a two-dimensional grid, with variously defined constraints. The motion from each node corresponds to a Moore neighborhood, i.e., it is possible in eight directions.
In this paper, three well-known path planning algorithms are described and compared: the Dijkstra, A* and A* /w Bounding Box. And two advanced methods are included, namely Jump Point Search (JPS), incorporated with the Bounding Box variant (JPS+BB), and Simple Subgoal (SS). These advanced methods clearly show their advantage in the context of the speed up of solution time.

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Published
2022-12-20
How to Cite
[1]
Soustek, P., Matousek, R., Dvorak, J. and Manakova, L. 2022. Explanation and Speedup Comparison of Advanced Path-planning Algorithms Presented on Two-dimensional Grid. MENDEL. 28, 2 (Dec. 2022), 97-107. DOI:https://doi.org/10.13164/mendel.2022.2.097.
Section
Research articles