共查询到20条相似文献,搜索用时 46 毫秒
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从2010年进行甩挂运输试点工作以来,无论是试点项目的选择还是甩挂运输方案的制定,货运站场(物流园区)都成为一项非常重要的考量因素。货运站(物流园区)的主要功能包括几个方面货物的运输组织、中转换装、装卸储运、通讯信息以及辅助服务功能。一般说来,无论采用传统的单车运输还是甩挂运输方式,对货运站场(物流园区)的功能要求并没有本质的差异。但在对设施设备的要求上,不同的运输组织形 相似文献
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本文分析了一次性整体出让货运站场用地供地模式的特点和存在的问题,提出了为确保大型龙头骨干物流企业可以获得稳定的站场资源而采用的土地出让模式。 相似文献
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我国大城市铁路货运站发展前景与策略 总被引:1,自引:0,他引:1
<正> 一、大城市货运站形成规律 我国大城市在发展过程中,经济发展与人民生活形成大量的货运需求,除了公路、水路之外,最常见的是通过铁路来满足大批量远距离货运需要。由此形成了若干个货运站(由地理位置、货运种类、货运技术要求等要素决定); 另一方面,在铁路发展中,则大城市是客流货流集散中心,往往又是若干条干线的交汇点。因此,必然形成由联络线与各种专业性车站构成的铁路枢纽。其中,数量最多的是货运站。 综上所述,大城市暨铁路枢纽的货运站、数量多、分工细、占地大、影响广,在城市发展与铁 相似文献
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铁路货运集中化需要注意的问题和建议 总被引:1,自引:0,他引:1
<正> 铁路货运集中化是改善铁路运输组织、强化货运管理的重要改革。所谓货运集中化,就是将货运业务集中到规模较大、设备比较完善、在路网中所处位置比较合理的货运站办理,并封闭(指停办货运业务,下同)货运量小且设备简陋的车站。货运集中化在全国铁路特别是在主要繁忙干线实施以来,取得了比较明显的社会、经济效益,提高了铁路运输能力和运营效益,优化了运输组织。但是,由于货运集中化在一定程度上突破了长期以来铁路货运管理体制,重新调整了多方(铁路与地方、路内各部门以及职 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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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
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