Block-layout design using MAX-MIN ant system for saving energy on mass rapid transit systems

  • Authors:
  • Bwo-Ren Ke;Meng-Chieh Chen;Chun-Liang Lin

  • Affiliations:
  • Department of Computer Science and Information Engineering, Chung-Chou Institute of Technology, Yuanlin, Taiwan;Department of Electrical Engineering, National Chung Hsing University, Taichung, Taiwan;Department of Electrical Engineering, National Chung Hsing University, Taichung, Taiwan

  • Venue:
  • IEEE Transactions on Intelligent Transportation Systems
  • Year:
  • 2009

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Abstract

This paper presents a method of block-layout design between successive stations for mass rapid transit systems (MRTSs). The aim is to save energy under the framework of the fixed-block signaling (FBS) system and the equi-block principle. Unlike past research regarding the energy savings of train operation, this paper proposes a combinatorial optimization model to reduce the computation time. In the presented approach, the problem of minimizing the energy consumption between successive stations is first formulated as a combinatorial optimization problem. Then, the train-speed trajectory for saving energy is optimized by a MAX-MIN ant system (MMAS) of ant colony optimization (ACO) algorithms. Finally, the block layout is designed in accordance with the shortest block length under the equi-block principle. It is shown that the method presents a significant improvement for the reduction of computational burden on the block-layout design. The feasibility and benefits are verified via simulation study. Analyses and discussions are also given.