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《综合运输》2016,(12)
为指导交通运输管理部门开展综合运输基本公共服务水平评价,本文在充分调研我国县域综合运输基本公共服务现状的基础上,提出了我国综合运输基本公共服务的基本概念和内涵特征,明确提出了我国开展综合运输基本公共服务评价的必要性、范围、基本原则等总体思路。在此基础上,提出了我国综合运输基本公共服务的具体评价方法、评价流程、评价结果应用、评价组织、具体指标计算等内容。最后以宁夏西吉县为例,验证了评价方法的可行性,为我国科学开展综合运输基本公共服务评价提供了重要的决策支撑。研究表明,综合运输基本公共服务评价非常有必要,范围应当包括城市公交、农村客运、农村公路和邮政普遍服务四个方面,应当遵循发展性、激励性、客观性、可操作性、突出重点五大原则,评价指标体系应当包括四大业务类型、三大类指标和17个具体指标。评价的等级分为优、良、中、差四个等级。 相似文献
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本文阐述了综合交通运输体系的基本概念,根据综合交通运输的自身建设水平、运输能力及对环境经济社会的影响三方面建立评价综合交通运输整体协调度的指标体系;提出了指标无量纲化的计算方法及指标权重的确定方法,进一步进行综合交通运输整体协调度的判定,并建立模型来合理安排各子系统的比重,使整个综合交通的协调度达到最优。最后用实例说明本文方法的应用价值。 相似文献
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2012年12月29日,2013年全国交通运输工作会议在北京召开。会议提出,深入学习和全面贯彻落实党的十八大精神,以科学发展观为指导,紧紧围绕主题主线,稳中求进,改革创新,坚定不移加快发展现代交通运输业,继续夯实交通基础设施有效供给,继续提高交通运输发展质量和效益,继续提升交通运输基本公共服务能力和水平,继续加强城镇化和集中连片特困地区的交通建设,全面推 相似文献
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建设绿色生态航道对于构建绿色交通运输体系、发展低碳交通运输经济具有重要意义。本文针对绿色生态航道评价中不可避免的模糊性和随机性特点,根据评价指标体系确定云模型参数,并计算各指标的熵权,构建指标体系下的云-熵模型,计算绿色生态航道等级的确定度。对绿色生态航道评价进行实证分析,验证了该方法的可行性和有效性,最后对提升航道绿色生态水平提出相关建议。 相似文献
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交通运输现代化评价指标体系初探 总被引:1,自引:0,他引:1
本文在对交通运输现代化的内涵和基本特征进行分析的基础上,通过建立一个树状的多层次综合评价指标体系,从设施水平、服务水平、管理与技术水平、社会经济效益水平、资源利用与环境影响水平五大方面对交通运输现代化水平进行衡量,然后尝试用综合指标评价法对我国目前的交通运输现代化水平进行定量评价,最后对评价所反映的问题进行分析,并提出相应的政策建议。 相似文献
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本文从分析基本公共服务的含义和特征入手,结合交通运输相关产业特征,阐释了客运基本公共服务的特定含义,并结合我国客运服务发展状况,分析了我国建设客运基本公共服务体系的意义。 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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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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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