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

摘要

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 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 computationand models.The models are divided into dynamic BTEand fixed BTE model toreflectdifferent considerations.Results 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.The capacity measurements from different lines or systems can be compared and evaluated.