A型路權及B型路權之輕軌容量模式研發

Development of Light Rail Capacity Model for A-type and B-type Right-of-Way

李明華(Ming-Hua Lee)

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(2018年)

https://doi.org/10.6342/NTU201803848

摘要

輕軌運輸系統具備在軌道系統及公路系統皆能運行的特色，並可根據不同路網需求提供不同的運輸容量服務，而輕軌容量是輕軌運輸系統其中一項重要的服務指標，可提供規劃者進行新輕軌系統的容量評估與系統設計，或者提供營運者設計良好的營運服務以及性能提升計畫。然而現行的輕軌容量解析模式大多從公路公車的角度探討輕軌容量，未能依據輕軌的路線線型、列車運轉特性以及應用於與公路交叉的路口號誌優先邏輯探討實際容量值，因此本研究建立一套以區間單位為計算架構的輕軌容量模式，模式中依據A型及B型路權的不同輕軌系統特性推導出8型安全時隔計算公式，並在B型路權的模式中以號誌週期搭配號誌優先策略的組合進行分類，總共歸類出31種優先號誌控制邏輯並推導出相應優先號誌週期參數的計算公式，供輕軌營運規畫者評估衡量輕軌優先需求以及公路交通的影響情形。在案例分析中，本研究分析了包含A型、B型以及實際路線的三種類型的解析容量結果，並以VISSIM微觀車流模擬軟體進行模擬驗證，最後結果顯示輕軌容量解析模式可提供精確的容量估算，提供輕軌系統營運者進行系統性能評估、規畫更精準的營運計畫及提供更有效的運輸服務。

關鍵字

軌道容量 ； 輕軌 ； 優先號誌 ； A型路權 ； B型路權

並列摘要

Modern light rail transit is an emerging transit system that possesses the properties of a rapid transit system, with a specific running path and frequent services, and those of a highway system, with a flexible operating mode. Light rail capacity is an explicit indicator that helps operators design efficient operation plans, improve an existing transit network, or build a new transit system. However, light rail capacity model developed in the past usually were formulated based on the bus capacity model, which does not thoroughly consider departure and arrival headways, turnback operations, and transit signal priority strategies. In this research, we adopted the green to cycle ratio (g/C) from the TCQSM and developed 8 types of signal headway equations including roadway effect in consideration of critical track layouts corresponding to A-type and B-type Right-of-Way (ROW), respectively. Besides that, we also elaborated 31 sets of equations to identify signal timing parameter in consideration of signal priority logics within B-type ROW. Analytical results from the case studies were validated by simulation models in VISSIM. This study demonstrate that the proposed light rail capacity model can help light rail transit operators to measure section and line capacity, and identify critical bottlenecks. Using the developed light rail capacity models can help planners design light rail system with efficient capacity utilization, and reliable services.

並列關鍵字

Railway Capacity Model ； Light Rail ； Transit Signal Priority(TSP) ； A-type right-of-way ； B-type right-of-way

參考文獻

Eric Carl Miller. (2007). Regional Transportation District Light Rail Central Corridor Capacity Analysis. Transportation Research E-Circular(E-C112).

Harriet R Smith, Hemily, Brendon, & Ivanovic, Miomir. (2005). Transit signal priority (TSP): A planning and implementation handbook.

International Union of Railways (UIC). (2004). UIC 406 Code 406 Capacity. UIC, Editions Techniques Ferroviaires, Paris.

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