Computation of Base Train Equivalents for Delay-based Capacity Analysis with Multiple Train Types

Different types of trains may have substantially dissimilar characteristics, resulting in various capacity impacts. The concept of base train equivalent (BTE) was proposed to standardize different train types into a universal unit, namely, base train unit (BTU). However, the previously developed delay-based model suffers from consistency issue, and its application is limited to only two train types. Thus, this study proposes a new concept of delay-based BTE computation and corresponding BTE models. The dynamic BTE model considers volume and heterogeneity and aims to reflect fully the actual capacity impact of non-base trains. The fixed BTE model identifies the most appropriate BTE value at a particular traffic heterogeneity. Results from the case studies demonstrate that the proposed method can address scenarios with all types of traffic mixes and multiple train types. The unit of delay-based rail capacity can be converted into a standard unit using the proposed models. The effect of an additional train can be easily assessed, and the capacity measurements from different lines or systems can be compared and evaluated.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee AR040 Standing Committee on Freight Rail Transportation.
  • Corporate Authors:

    Transportation Research Board

  • Authors:
    • Lin, Tzu-Ya
    • Lin, Ying-Chun
    • Lai, Yung-Cheng (Rex)
  • Conference:
  • Date: 2019


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 6p

Subject/Index Terms

Filing Info

  • Accession Number: 01697342
  • Record Type: Publication
  • Report/Paper Numbers: 19-02037
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 7 2018 9:24AM