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采用数字化的信用管理制度能够规范地方铁路建设的市场秩序,助力地方铁路和谐发展,对实现“轨道上的京津冀”尤其重要。相较于公路和水运市场,地方铁路建设属于新兴市场,目前存在诸如信用评价主体缺乏公正性、评价内容缺乏合理性、评价结果未被有效利用等问题,信用管理制度体系仍需继续健全,最终形成统一的信用评价标准,制定合理的信用监管和奖励制度,创建新型监管机制。搭建高效运转的数字化信用管理平台,实现与其他领域信用信息互通互联,强化数字化信用管理工作队伍能力建设。 相似文献
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《交通建设与管理》2014,(7):31-33
<正>今年1月,国务院总理李克强主持召开了国务院常务会议,就我国诚信体系建设进行了专题研究,部署加快建设社会信用体系、构筑诚实守信的经济社会环境,讨论通过《中华人民共和国安全生产法修正案(草案)》,并要求:全面推进包括政务诚信、商务诚信、社会诚信等在内的社会信用体系建设。这意味着,诚信体系又一次被提上至高位置。"信用是现代市场经济的基石。"窦雪松表示,信用缺失会使交易成本提高,甚至会导致交易链的中断,影响经济发展的大局,"给整个社会带来灾难性的后果"。"信用评价机构资源整合""资源整合是社会发展的必然产物,它是人们需要遵循的自认规律。"窦雪松说,整合就 相似文献
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《交通建设与管理》2006,(11)
随着我国经济持续快速发展,长江港口的现状已经很难适应沿江经济快速发展的需要。论文概述了长江港口发展的基本情况,总结了长江港口发展的基本思路,分析了长江港口发展中在港政管理体制、港口企业法人治理结构、岸线规划使用、港口通过能力、航道建设整治、港口建设投资、港口法制化建设、软环境建设等诸多方面存在的问题,提出了充分利用长江黄金水道,大力发展长江港口的建议:深化港口管理体制改革、依法治港落实港口管理职能、解决长江港口结构性矛盾、加大长江航道建设和整治力度、加快建设以港口为主的物流园区、构建长江港口战略联盟、加强港口布局规划管理、加快建设重庆和武汉航运中心。 相似文献
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港口生产作业普遍采用基于电力电子变流技术的大功率电力装卸设备,这些非线性负载会对电网安全稳定运行造成不利影响,会造成电网运行电压偏高、功率因数低、谐波含量大等电能质量问题。本文提出基于TCR型SVC装置的电能质量治理方案,并通过MATLAB/Simulink仿真治理后效果。当SVC装置投入后,电网主要电能质量指标均满足国标限值要求,该治理方案技术先进,成熟可靠,能够有效优化港口电网电能质量、节能降耗,促进绿色低碳港口的建设。 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