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交通一体化是京津冀地区优化和引导城镇空间布局、疏解非首都核心功能和实现协同发展的重要基础,建设城际铁路是实现京津冀交通一体化的关键所在。本文分析了京津冀区域经济、人口、城镇化、资源环境等发展特征,梳理了协同发展战略要求下铁路网发展中存在的主要问题,阐述了加快京津冀地区城际铁路发展的必要性,提出了京津冀城际铁路发展的战略途径及措施建议。 相似文献
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《综合运输》2017,(5)
随着机场开发和区域经济的一体化发展,以机场为基础的航空都市区规划建设成为发展趋势,作为临空新城,其交通规划具有特殊性。郑州航空港经济综合实验区(简称"航空港实验区")是全国首个上升为国家战略的航空港经济发展先行区,正处于全面深化改革、转变发展方式的攻坚期;现代、高效、便捷的综合运输体系是实现经济社会可持续发展的重要保障。本文借用SWOT模型的分析思路,深入分析航空港实验区综合交通发展的内、外部环境,借鉴国内外先进经验,提出航空港实验区2020年及2040年的发展目标、发展战略,为航空港实验区未来一个时期的综合交通运输发展指明方向,也为我国其他地区航空都市区综合交通运输体系的建设提供借鉴。 相似文献
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城市综合交通枢纽的分类与布局 总被引:6,自引:0,他引:6
<正>城市是区域经济文化的中心,是交通集中地和转换地,与交通的发展紧密相连。综合交通枢纽是区域交通网络的重要节点,是各种运输方式交通网络的交汇和运输转换衔接处,是实现客运"零距离换乘"、货运"无缝化衔接"的现代交 相似文献
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在经济全球化不断深入和我国城镇化水平不断提升的背景下,都市区一体化发展成为越来越多城市发展的方向与重点,且交通运输一体化是都市区提高交通运输服务水平的关键。本文首先探索了交通一体化发展的特点、发展阶段,之后采用因果分析法,以济宁都市区为例,通过深入剖析区域内交通一体化的发展现状、存在问题、发展需求,探索和总结近期济宁都市区交通一体化的规划思路与关注重点。 相似文献
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空港和高铁枢纽作为城市重要的高速对外交通设施,在城市发展中的地位日趋重要,逐渐形成了以交通节点为核心的枢纽地区。空港和高铁枢纽地区拥有共同的价值特征和相似的影响范围,吸引的产业也十分类似。参考国外的案例,两者联合发展有着显著而重大的意义。通过加强市内交通系统的衔接和将空港-高铁枢纽地区整体规划建设,可以充分发挥空港和高铁的节点交通价值和城市功能价值。 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