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本文简要介绍了哈尔滨至大连铁路客运专线信号系统设计方案,并对一些关键技术问题进行了探讨。 相似文献
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A multi-channel strategy for the purposes of marketing and ticketing has been widely employed in various fields, including the transportation industry, yet few transportation studies have investigated ticket channel-related issues. This study thus adopts Taiwan High Speed Rail (THSR) as a case study to identify passengers’ perceptions regarding key factors that affect the channel preference through which they receive their services, particularly across a four-stage ticket purchasing process, including information enquiry, booking, payment, and ticket pick-up. To investigate these key factors, we base the framework of our research model upon customers’ perceived value perspective, adopting a multinomial logit model to examine the influence of channel attributes on HSR passengers’ preferences. The relationship among the decisions made by these passengers at each ticket purchasing stage is also examined. The findings of our study demonstrate that perceived risk, perceived benefit, and perceived ease of use are critical factors influencing passengers’ channel preference throughout the ticket-purchasing process. Perceptual differences are proven to exist due to various demographic factors and trip characteristics. The conclusions of this study have implications for THSR management to design appropriate ticketing channel services for certain types of passengers and can also be generally applied to multiple distribution channels in conventional railway system and intercity bus services. 相似文献
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The purpose for the analysis of capacity usage is to utilize the rail infrastructure in a more efficient and practical way. The practical and theoretical challenge of the rail capacity is its dynamics and uncertainty, which are common in China and elsewhere. Based on the capacity balance, a train service-demand intention set (TSDIS) at High-Speed Rail (HSR) line (t@l-TSDIS) is defined, which takes the number of trains, the average speed, the heterogeneity and the stability as the core elements for the capacity usage. For dynamics and uncertainty, we update the norm for capacity measure as the time needed to fulfill the task list t@l-TSDIS. Then we develop the objectives and constraints for the Mathematical Program for Line Capacity (MPLC), which aims at minimization of heterogeneity and running time as well as maximization of reliability. For solving MPLC, the Pareto Archived Evolutionary Strategy (PAES) and fuzzy logic penalty function are introduced. Furthermore we propose a rolling optimization tactic oriented by the practical problem, which combines the improved Pareto Archived Evolutionary Strategy (iPAES) with an interactive technique. In a case study, we apply the proposed ideas and methodology to Beijing-Shanghai HSR (BS-HSR) line much closer to the railway practice. By using the computer language C# to compile the Console program, Pareto optimized results for MPLC are achieved, including the standard and practical values for the heterogeneity indices, reliability indices and running time indices. We also discuss the sensitivity of the heterogeneity index. This research demonstrates that it is useful to analyze the line capacity usage for China HSR with the proposed optimization approach. 相似文献
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电务轨旁设备巡检系统综合应用低照度感光、激光照度补偿、图像数据压缩、机器视觉等技术,安装在高速铁路巡检车辆上,实现电务轨旁设备外观图像采集、管理和分析功能。该系统应用机器视觉技术,通过对比原始图像数据,实现设备变化的自动识别;结合地面台账数据和车载定位信息,准确定位异常设备图像和设备位置,实现图像自动筛选和自动检测,切实为电务轨旁设备养护维修提供依据和指导。 相似文献
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针对我国高速铁路出现的轮轨匹配问题,以车-地联动,时-空统一,动、静结合为原则进行轮轨关系现场试验方案设计,根据我国高速铁路轮轨匹配特点,选取京沪、武广、哈大、兰新、贵广、丹大6条高速铁路开展轮轨关系现场试验。自2016年以来,钢轨静态、车轮静态、车轮多边形、道岔动静态、轮轨耦合振动等测试项目相继开展,初步获取了轮轨状态变化与车辆异常振动的影响关系,积累了大量试验数据,为改善和优化现场轮轨关系问题提供了数据支撑,为进一步完善我国高速铁路轮轨关系技术体系奠定了强有力的基础。 相似文献
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《铁道标准设计通讯》2017,(2):5-9
为指导严寒地区高速铁路无砟轨道结构选型,结合严寒地区高速铁路的工程特点,分析严寒地区对无砟轨道的需求和选型原则。通过介绍我国双块式无砟轨道,CRTSⅠ型、Ⅱ型和Ⅲ型板式无砟轨道的主要特点及应用情况,从严寒地区高速铁路无砟轨道的适应性、施工性、养护维修及经济性等方面进行对比分析。结果表明:严寒地区应优先选用预制轨道板,CRTSⅠ型和Ⅲ型板式轨道具有较好的严寒适应性和耐久性,但CRTSⅢ型板式轨道的经济性更好,建议严寒地区无砟轨道应优先选用CRTSⅢ型板式无砟轨道。 相似文献