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《综合运输》2017,(6)
交通流线设计是关系客运枢纽交通功能实现的关键问题。当前建筑与交通两个学科领域共同推进的客运枢纽交通流线设计理论研究从不同学科视角分阶段进行,存在较为明显的"学科壁垒"现象。该现象的存在使得客运枢纽交通流线设计理论中一些底层的基础性规律研究不足,在一定程度上造成了客运枢纽交通流线设计理论研究与工程实践的脱节,并导致我国客运枢纽在从单一运输方式客运站向综合客运枢纽发展的过程中出现诸多工程设计实践中的困惑与运营实践中的问题。客运枢纽交通流线设计理论研究中"学科壁垒"现象的揭示,有助于运用跨学科视角,推进相关基础理论研究,为我国综合客运枢纽设计实践提供理论支撑。 相似文献
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铁路综合客运枢纽具有明显的协同化运营要求.本文针对面向协同化运营的铁路综合客运枢纽建设问题,分析了铁路枢纽与集疏运体系的协同关系,提出了铁路综合客运枢纽建设的问题导向、需求导向和目标导向,梳理了面向协同化运营的建设原则和推进策略,在此基础上总结提炼面向协同运营的铁路综合客运枢纽推进建议. 相似文献
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《综合运输》2016,(11)
新疆是"丝绸之路经济带"建设的核心区,建设乌鲁木齐国际枢纽将极大地促进新疆核心区区位优势的发挥,对于国家"一带一路"战略的全面实施意义重大。本文从地理区位、市场潜力、国际航线等方面分析了乌鲁木齐国际航空枢纽发展的基础与优势,由此进一步探讨国际航空战略面临的主要问题,提出从提高机场运行保障能力、提高区域机场体系协同发展、发展国际航空市场和中转业务、加大政府政策资金扶持、加强舆论宣传工作等方面推动和加快乌鲁木齐建设国际航空枢纽的建设工作,使其加强我国与中亚、西亚、南亚及欧洲国家的联系,促进"丝绸之路经济带"沿线国家互联互通,有利于全面提升国家在丝绸之路经济带资源整合能力和影响力。 相似文献
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本文针对三峡枢纽通过能力不足与日益增长的运输需求之间的矛盾,研究提出了推进过闸船舶船型标准化、提高过闸船舶装载率等主要措施以及新建三峡三线船闸、完善翻坝基础设施等工程手段,以期提高三峡枢纽综合通过能力,促进三峡枢纽航运效益的发挥。 相似文献
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Pedestrians as compared to vehicular traffic enjoy a high degree freedom of movement even in heavily congested areas. Consequently, there are more alternative links available to pedestrians between a given origin‐destination (O‐D) pair. This paper describes a study done by the University of Calgary to evaluate the factors affecting the choice of route on intra‐CBD trips or trips within the Central Business District (CBD). An origin destination survey conducted in downtown Calgary, Alberta enabled the identification of the most significant factors influencing the choice. These factors were analyzed in relation to the physical characteristics of the location, personal characteristics of the trip maker and the type of the trip. It appears that most people chose the shortest link and factors such as the level of congestion, safety or visual attractions were only secondary. This suggests that the length should be made a major consideration when planning and designing pedestrian links. 相似文献
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This paper estimates the efficiencies and productivity changes of 12 international airports in the Asia-Pacific region based on data from 1998 to 2006. We apply stochastic frontier analysis (SFA) to compute efficiency estimates and use the Malmquist productivity index (MPI) to analyze productivity changes. We use the SFA model with a translog-type production function after testing the statistical hypotheses. According to the results of the SFA hypothesis tests, airports have experienced a technological regression; the deviations from the efficiency frontier are caused more by technical inefficiency than random noise. However, the inefficiency was found to decrease. The MPI reveals a declining trend resulting more from technological change than from efficiency change, with a decrease in inefficiency. Taken together, both the hypothesis tests and the MPI not only provide consistent conclusions, but also suggest that airports should concentrate on technological progress. 相似文献
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介绍了城市轨道交通工程中杂散电流不同的监测系统的构成,分析了集中式、分散式和智能型等监测系统的配置和功能,以及智能型实时在线监测系统的重要意义,为轨道交通工程杂散电流监测系统的选择与应用提供参考。 相似文献
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明确埋地管道防腐保温层的技术评价标准,对埋地钢质管道的安全运行,延长管道使用寿命具有重要意义。为了对埋地管道防腐保温层做出有效评价,从间接检测与开挖检测2个方面,结合现场检测数据,提出了基于防腐保温层的电流衰减率、绝缘电阻率、质量状况与厚度的分级评价标准及基于4种评价指标的综合评判方法。工程实践表明,该评价标准对防腐保温层是否存在失效能做出有效判断。 相似文献
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天然气自动计量系统有多种组态软件,由于软件的不相通性,造成了计量系统数据采集的通用性差、数据传输与入库的时效性差、数据利用的可靠性低.结合各组态软件的实际情况,从设计上充分利用Oracle大数据处理能力以及Partition(分区表)的特性,实现历史数据的存储,应用WebService与COM+数据访问组件提供多层数据访问架构,采用OPC与DDE工业数据交换协议,实现了各站场计量数据的实时上传,为连续数据采集和实时监控提供了可能,节约了改造成本. 相似文献
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Joseph N. Prashker 《Transportation》1979,8(4):329-346
Reliability of travel modes was found to be the most important characteristic of transportation systems in several attitudinal investigations of individual travel behavior. This paper represents the first part of a research effort aimed at gaining a better understanding of the characteristics of reliability of transportation modes in urban travel. In this research, reliability characteristics are identified; their importance relative to each other is assessed, and an insight into possible structure of an objective reliability index is discussed. The research is based on perceived values of reliability, which were identified through a large attitudinal survey conducted in the Chicago metropolitan area. 相似文献