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2003年以来,河北省道路运输管理部门结合行业实际,提出了"抓重点,促发展,抓科技,上档次,抓重点,求突破"的发展思路,明确了"以人为本",依法行政,安全稳定,科学发展"的发展理念. 相似文献
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在市场竞争中,企业要生存和发展,只有两手抓,一手抓顾客,提高顾客满意度,培养忠诚顾客群,扩大市场占有率;另一手抓降低成本,增加经济效益,也就是外拓市场,内抓管理. 相似文献
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蜀山苍苍,青衣泱泱,严道有名,秦汉已扬。如今的荥经县,唐武德三年(620年)方有此名,秦惠文王更元之十三年(前31 2年)置县名严道。位于四川盆地西缘,雅安市中部,是古代南丝绸之路的重要驿站。汛期又至,空气清新,路面却泥泞不堪,坎坷难行。在蜀山间盘旋颠簸,感受风间林隙呼啸过耳,静态大石山头欲落、动态瀑 相似文献
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<正>仲春时节,潮涌皖江。三月的江淮大地,草木萌动,繁花似锦,处处焕发着盎然生机。3月26日至28日,以交通运输部总规划师戴东昌为组长的部长政策咨询小组20多名专家莅临安徽,分赴安徽省安庆、池州、铜陵、芜湖、马鞍山等沿江城市,调研皖江城市带承接产业转移示范区交通运输发展规划情况。专家们每到一地,当地党政主要领导都出席座谈会、陪同调研,听汇报,看展板,登码头,进工地,一丝不苟,一言一行都显出心系皖江发展,情牵交通跨越。 相似文献
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在德国,你要是没有一辆属于自己的自行车,就有一种危机感,别说出门不方便,别人也会瞧不起你,说你太跟不上形势,甚至说你"抠门"、"小气鬼"。交通工具发展真是三十年河东,三十年河西,当汽车在德国饱和后,自行车又重返交通线,交通返古理由之一就是利健康、利环保。人手一辆自行车德国过去无疑是一个车轮子上的国家,可现在却成了自行车大国。德国有8200万人口,目前拥有7000多万辆自行车, 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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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