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城际铁路对支撑和引领城市群发展具有重要作用,但要避免过度超前建设导致资源浪费,合理把握城际铁路建设时机至关重要。本文基于人口、经济水平等指标对城际通道的运输需求进行模型构建,并对20个城市群中的124条城际主通道进行案例分析。结果表明,至2030年,我国大部分城际主通道可利用高速铁路或既有铁路承担城际客运功能,但部分发达地区确有城际铁路建设需求。提出以下政策建议供相关部门参考:一是及时做好发达地区城市群城际铁路建设规划;二是慎重进行全国范围内的城际铁路大规模集中投资;三是重点抓好未规划有高速铁路的城际通道的城际铁路建设。 相似文献
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基于旅客特性的离站静态标识空间布局设计 总被引:1,自引:0,他引:1
铁路客运枢纽是城市内外交通衔接的纽带,铁路客运站内部的离站交通标识对旅客在铁路客运站中安全快速流动和转移起到了重要作用。如何使旅客舒适快捷地离站,不仅是离站旅客也是铁路客运枢纽管理者所密切关心的问题。文章从标识的基本概念出发,对静态交通标识进行详细分类,基于旅客特性,对静态标识的摆放位置进行研究,并建立各类静态标识高度设计模型,为大中型铁路客运枢纽中的静态标识空间布局设计提供参考。 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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日本城市综合客运枢纽的特点与启示 总被引:3,自引:0,他引:3
基于日本城市综合客运枢纽特点分析,结合我国城市客运枢纽建设问题提出相关建议:以铁路车站为核心,加强城市轨道衔接,打造综合性客运枢纽;建立一体化的管理体制或协调机制,保障建设、管理运营的一体化。 相似文献
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近年来,湖北省积极打造综合客运枢纽示范项目取得了显著成效,但仍然缺乏针对综合客运枢纽城市的统筹规划,亟需建立全省综合客运枢纽城市层级体系。从综合客运枢纽城市概念入手,划分国际性、全国性、区域性和地方性四个综合客运枢纽城市层级,构建综合客运枢纽城市层级评价指标体系,采用“节点重要度+系统聚类”的定量分析与定性分析相结合的方法对湖北省17个市州进行分层布局。最终形成湖北省“1+3+3+8”的综合客运枢纽城市布局体系,用于指导后续全省综合客运枢纽港站布局,推动新时代综合交通运输体系高质量发展。 相似文献
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综合客运枢纽是实现多种轨道交通方式衔接换乘一体化的重要环节,为了找出影响综合客运枢纽换乘流线关键因素,合理布局枢纽换乘流线,采用决策与试验评价实验室(DEMATEL)与解释结构模型(ISM)融合方法,对综合客运枢纽换乘流线影响因素之间的关系进行分析。采用DEMATEL方法研究影响因素间的相互关系和影响程度,结合ISM模型建立影响因素之间的多级递阶结构模型,深入分析综合客运枢纽换乘流线影响因素之间的影响层次及影响路径。研究结果表明:换乘组织有序度是综合客运枢纽换乘流线的根本影响因素。 相似文献
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基于双重差分模型的高速铁路对中国三大城市群经济发展的比较研究 总被引:1,自引:0,他引:1
《综合运输》2019,(5)
文章以中国三大城市群——长三角城市群、京津冀城市群和珠三角城市群为例,运用2007~2016年地级市及以上数据,基于双重差分模型比较研究高速铁路的建成通车对人均GDP和城乡居民收入差距的影响差异。研究结果表明:高铁的建成通车显著地提高了长三角城市群、京津冀城市群、珠三角城市群的人均GDP增长率;同时显著缩小了珠三角城市群、长三角城市群、京津冀城市群的城乡居民收入差距;长三角城市群和珠三角城市群的社会零售消费能力较强,对人均GDP的增长有明显拉动作用;增加财政支出,社会零售消费和地区劳动力人口均能显著缩小三个城市群的城乡居民收入差距。 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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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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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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《Transportation Research Part A: General》1991,25(6):407-418
The main deficiency of most current modeling approaches to transportation can be identified as neglect of the integration of existing geographical knowledge in regard to the ex ante transport/land use modeling approaches, with its focus on territorial dynamics and theory development. This paper addresses this aspect of the problem by introducing a theoretical and methodological framework for the analysis of the interrelationship between land uses. The analysis attempts to determine to what extent the functional land use in a city can be considered an ordered pattern. The order sought does not rely on purely spatial configurations, but on the correlation of transportation and land use. The first section of this paper focuses on theoretical considerations. It stresses the fact that conventional approaches do not apply in the present context. It then suggests an alternative based on areas of influence and measured in terms of level of attractance of land uses. The second describes a procedure based on this alternative following the remarkable contribution of Hanjoul, Beguin and Thill. An application of this procedure to the analysis of Shanghai is then examined. Finally, an evaluation of the strategies for optimizing the interrelationship between land uses is presented. The paper concludes with a possible research agenda. 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