輕軌運輸系統，連續路段容量分析

Rail Capacity Analysis of Continuous Sections for Light Rail Transit Systems

軌道容量分析是掌握輕軌運輸系統供給運能的重要工具，但多數分析方法僅針對單一空間參考點進行評估，並未考慮其上下游間的影響，而評估傳統暨區域鐵路連續路段容量之分析方法，又因為其系統特性與輕軌差異甚大而無法適用。有鑑於此，本研究考量輕軌的特性與路口號誌的影響，發展了適用於A、B型路權輕軌運輸系統之連續路段容量分析模擬模式，最後以高雄輕軌為例，分析其容量現況，並探討號誌週期與時差對容量之影響。研究結果顯示，連續路段的輕軌容量主要受沿線路口最大號誌周期的影響，而不同路口的號誌時差則會影響輕軌列車的運轉時間。規劃輕軌系統時，本研究的成果可用來評估不同號誌時制計畫對輕軌容量、輕軌運轉時間以及車隊規模的影響，如此將有助於輕軌建設的推動。

"Rail capacity analysis is an important tool to evaluate the transport capacity of light rail transit systems. However, most methods for light rail transit systems estimate the capacity of each critical point separately without considering the impacts of transit flow between upstream and downstream points. Although the capacity analysis models for conventional railway systems could analyze the capacity for continuous rail sections, they cannot be applied to light rail transit systems since the characteristics of these two systems are different. For this reason, this study develops a rail capacity simulation model of continuous sections for light rail transit systems with type A and B right of ways, taking into account the features of light rail transit systems and the impacts of roadway intersection signals along the transit line. Finally, we take the Kaohsiung Light Rail Transit as an example to analyze its capacity and investigate the impacts of signal cycles and offset on capacity. The research results show that the light rail capacity of continuous sections is mainly affected by the maximum signal cycle along the line, and the offsets of the signals at different intersections will affect the journey time of the light rail train. When planning a light rail transit system, the results of this research can be used to evaluate the impact of different signal timing plans on the capacity of the system, the operation time of the light rail train, and the fleet size, which will help promote the light rail transit projects."