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国内外港口多式联运体系的有益经验是以港口为核心,海/港/陆(河)一体化的联运网络运作思路;不断完善现有设施、节点、网络,创新运输组织模式和服务手段,变革运输政策以有利于联运体系的发展。从国内外大型港口多式联运体系的发展看,海海联运需求呈萎缩趋势,海河联运具有较大发展潜力;此外,以海公联运为主的内陆联运体系正向着多通路、多方向与多种运输方式的联运网络发展。 相似文献
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<正> 为改善我国集装箱运输系统的运输条件,促进国际集装箱海铁联运的发展,1997年5月30日,经铁道部批准,由柳州铁路局与湛江港务局共同组建的湛江港站正式对外办理集装箱运输业务,成为全国首家由铁路和港务部门联合经营管理的铁路集装箱办理站——集装箱港站。随后,青岛、天津、厦门、连云港等港口和当地铁路运输部门相继仿效,开设了集装箱港站。我国吞吐量最大的集装箱港口上海也于1998年7月开通了杨浦港站和军工路港站。集装箱港站这一新生事物的发生,是我国推进国际集装箱多式联运的必然产物,它的不断成熟与发展,必将为实现集装箱海铁联运一体化经营发挥重要的作用。 相似文献
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通过加快港口后方多通道的大铁路网、"一个中心站+多条港口支线"的港口铁路枢纽和"港站一体化"的"港前站"等有机联系的分体系的规划建设,不断构建和完善宁波港集装箱海铁联运疏港铁路体系。 相似文献
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<正> 管道运输是使用管道输送气体和液体介质货物的现代化运输方式。它具有连续性强、运输量大、不产生空驶、全天候运行、可采用密闭式运输,便于管理。易于实现远程运输自动监控、漏失损耗小等特点,是一个国家能源生产和运输业比较发达的特征之一。管道运输可以输送油品(原油、成品油和液态烃)、天然 相似文献
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连云港港是新亚欧大陆桥的东桥头堡、亚欧问重要的水陆中转港。在我国港口建设的新一轮热潮中,连云港港跻身于全国沿海十大集装箱港口和全球百强集装箱港口行列。走进“十一五”,在新形势下,如何抓住机遇,迎接挑战?“‘十一五’期间,连云港港将努力实现吞吐能力和吞吐量的双倍增,力争2008年建成亿吨大港,集装箱突破300万TEU。”站在连云港港发展规划模型图板前,连云港市港口管理局局长丁军华如是说。 相似文献
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<正> 管道运输与铁路、公路、水运、航空运 输并称为当今世界的“五大 运输”方式。它们共同组成运输体系,按照各自特点,各抒其长、相互配合,共同完成社会运输任务。我国管道运输发展潜力巨大。目前,迫切需要制定管道运输产业政策,用以调整管道运输行业健康发展。 一、中国管道运输现状 我国自1970年随着大庆油田的开发,石油管道运输开始起步,26年来,共建成原油、成品油、天然气、煤气和其它介质管道1.8万公里, 相似文献
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宁波深水良港,有着得天独厚的地理优势和港口资源,是我国沿海主枢纽港之一和综合运输体系的重要枢纽。作为集装箱运输干线港,宁波港是长江三角洲及长江沿岸地区工业发展所需能源、原材料及外贸物资运输的主要中转港,是浙江省、宁波市国民经济和对外开放及发展临港工业的重要依托。在国家发改委和交通部编制的《长江三角洲地区港口建设规划》中明确指出:“建设以上海、宁波两港为主,干线港、支线港、喂给港层次清楚、分工合理的集装箱运输体系”,这是对宁波港新的战略定位,宁波港在未来长三角区域发展中将与上海港同为核心。要实现宁波港的发… 相似文献
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综合运输体系中管道运输的发展状况 总被引:1,自引:1,他引:0
本文对我国管道运输在综合运输体系中的地位和作用进行了分析。提出管道运输在我国综合运输体系中的地位有待进一步提高,建议加快管道运输网络体系和管道运输法规体系建设,并加强对全国管道网络建设规划的统筹。 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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《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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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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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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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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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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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