Energy-Efficient Operation of Subway Systems

To reduce the operational costs and to improve the operational efficiency, people are paying more and more attention to the energy-efficient operation of subway systems. In this paper, the authors present and compare two algorithms for determining the energy-efficient speed profile for trains of subway systems. Firstly, they formulate a mixed integer linear programming (MILP) model to get the optimal speed profile. Secondly, they present an integrated algorithm for optimizing the timetable for the entire route together with the speed profiles between successive stations, which is called integrated timetable. Finally, based on the data from the Beijing YiZhuang subway line, they give some numerical examples to illustrate the validity, and to compare the optimality of the algorithms. The results show that both algorithms can get a good performance in saving energy, but the MILP approach gives a better energy-efficient performance, and the integrated algorithm needs a shorter computation time.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 12p
  • Monograph Title: TRB 92nd Annual Meeting Compendium of Papers

Subject/Index Terms

Filing Info

  • Accession Number: 01472150
  • Record Type: Publication
  • Report/Paper Numbers: 13-2451
  • Files: TRIS, TRB, ATRI
  • Created Date: Feb 13 2013 10:18AM