交流制式下重庆市域(郊)铁路与轨道交通网络化运营灵活编组方案研究
Flexible Formation Scheme of Chongqing Urban (Suburban) Railway and Rail Transit Network Operation under AC System
灵活编组已成为轨道交通提升运营灵活性、缓解运营负担的重要手段,广泛应用于众多既有线路和规划线路。为促进市域(郊)铁路良性发展,落实节能、提质、增效理念,论证灵活编组对于市域(郊)铁路的适应性及合理方案至关重要。立足于重庆市域(郊)铁路与轨道交通线路网络化运营,以重庆市郊铁路C1线—重庆轨道交通28号线—重庆市郊铁路C5线通道为例,分析灵活编组对于长大贯通线路的必要性,并从运能适应性、运输经济性、电分相设置、运营影响等方面对灵活编组方案进行比选。研究结果表明:灵活编组对于长大贯通线路匹配运输需求、降低运输成本意义重大;交流制式轨道线路受电分相影响,应审慎采用重联编组;长短编组混跑方案对于市域(郊)铁路网络化运营适应性更强。
As an important means to improve flexibility and ease the burden in rail transit operations, flexible formation has been widely used in many existing and planned lines. To promote the harmonious development of urban (suburban) railways and implement the concepts of energy conservation, quality improvement, and efficiency enhancement, it is crucial to demonstrate the adaptability and reasonability of flexible formation for urban (suburban) railways. Based on the network operation of urban (suburban) railway and rail transit in Chongqing, this paper took Suburban Line C1-Rail Transit Line 28-Suburban Line C5 transportation corridor as an example, analyzed the necessity of flexible formation for the long and continuous transmission lines, and selected the flexible formation plan from the aspects of capacity adaptability, transportation economy, neutral section setting, operational impacts and so on. The results show that the flexible formation is of great significance for the long and continuous transmission lines to match the transportation demand and reduce the cost of transportation; reconnection formation should be carefully adopted because of the neutral section in AC power railway; the long and short mixed formation is more adaptable for the network operation of the urban (suburban) railway.
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