研發標準列車當量分析模式

DEVELOPMENT OF BASE TRAIN EQUIVALENTS (BTE) FOR RAIL TRANSPORTATION

劉允宣(Yun-Hsuan Liu)

指導教授 ： 賴勇成

國立臺灣大學/工學院/土木工程學研究所/碩士(2011年)

https://doi.org/10.6342/NTU.2011.02156

摘要

傳統鐵路路線常有多種不同種類的列車運行，隨著異質性的升高，鐵路容量也會隨之下降，然而以單位時間內通過列車數定義的鐵路容量，忽略了異質性及其影響，此通過列車數可能指的是快捷的旅客列車或笨重的貨運列車，鐵路容量分析一直缺乏一個將列車標準化的過程與方法。為了解決上述問題，本研究提出標準列車當量（BTE）這個新概念，並針對三種主要的鐵路容量模式（解析模型、模擬模型及參數模型）分別提出計算BTE的方法，BTE的概念與公路容量分析上的小客車當量（PCE）類似，在公路容量分析時，路段上所有車輛皆經由PCE轉化為小客車，而公路容量就是以小客車車輛數（PCU）來表示；將類似的原理應用在鐵路上，BTE可以根據不同鐵路容量模式的結果把路線上不同的列車全部轉化成為同一種選定之標準列車（BTU）；藉由這個標準化的方法，可利於規劃人員溝通與協調，進而得到更有效與準確的鐵路容量分析的成果。

關鍵字

標準列車當量 ； 小客車當量 ； 容量分析 ； 容量因子 ； 敏感度分析

並列摘要

A conventional railway system usually has several train types with various services operating on the same line. Difference in train characteristics leads to different capacity impact to the system. Rail line capacity is commonly defined as the maximum number of trains that can be operated on a section of a track with an expected level of service within a given time period. However, a particular unit (trains/hour or trains/day) does not reflect the train type the unit refers to. Since different trains do have different characteristics, it is essential to develop a method to convert different types of trains into a standardized unit. In this study, a new concept is proposed, namely, the base train equivalent (BTE), along with a standardization process to classify different train types in accordance with the particular type defined by the user. This concept is similar to the passenger car equivalent (PCE), which converts trucks to passenger car units in classifying highway transportation. BTE is used to convert the trains on the line into a base type of train based on the results obtained from capacity analysis. I developed several methods to determine BTE according to specific types of capacity analysis, such as analytical, parametric, and simulation capacity models. Using the proposed method, capacity measurements from different lines or systems can be compared and evaluated, resulting in meaningful and useful attributes.

並列關鍵字

base train equivalents (BTE) ； passenger car equivalents (PCE) ； capacity analysis ； capacity factor ； sensitivity analysis

參考文獻

Abril, M., Barber F., Ingolotti L., Salido M.A., Tormos P., and Lova A. (2007), An Assessment of Railway Capacity, Transportation Research Part E, doi:10.1016/j.tre.2007.04.001

Al-kaisy, A. F. (2000), Developing Passenger Car Equivalents for Heavy Vehicles on Freeways During Queue Discharge Flow, Transportation Research, part A 36, pp. 725-742.

Benekohal, R. F., Zhao, W. (1999), Delay-based Passenger Car Equivalents for Trucks at Signalized Intersections, Transportation Research, part A 34, pp.437-457.

Carey, A., Kwiecinski, A. (1994), Stochastic Approximation to the Effects of Headways in Knock-on Delays of Trains, Transportation Research, Part B 28 (4), pp. 251-267.

Demarchi, S., and Setti, J. (2003), Limitations of PCE Derivation for Traffic Streams with More Than One Truck Type, TRB 2003 Annual Meeting CD-ROM