共查询到20条相似文献,搜索用时 185 毫秒
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本文分析了区域协调发展的趋势,提出"十二五"区域交通协调发展的思路。中西部地区要加快农村公路交通建设,加大国家财政的支持力度;东部地区要通过多元化投资加快区域间和城际交通发展;此外,要加强东西向综合运输通道建设以促进生产要素的跨区域配置,加强边疆地区的国际通道建设以推动国际性区域合作。 相似文献
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纵观长春市200年的发展历史,其城市地域的形成和发展与长春市的交通运输体系发展密切相关。长春市位于东北亚的核心地理位置,与东北及东北亚联系紧密,具备发展统一的物流体系的区域空间优势;吉林省沿边通海,具备双边开放优势,有利于建立与国际联网的物流体系。随着东北进一步开放,长春市交通及城市发展将迎来快速发展时期,同时也必将促进相关区域的迅速崛起。 相似文献
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本文从"坚持以人民为中心"的发展立场、解决不平衡不充分发展问题、融入国内国际双循环、构建更高水平一体化的城市—区域、综合交通体系建设以及机场布局规划制度创新等多个维度,阐述了长三角一体化背景下规划新建苏州机场的战略价值和社会实践意义。 相似文献
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在构建国际国内双循环新发展格局下,通过国家物流枢纽建设,高效整合各类要素资源,提高产业及区域协同发展能力,已成为推动形成新动能、促进经济高质量发展的内在要求。金华被确定为生产服务型国家物流枢纽。金华依托四通八达的综合交通枢纽,将物流优势转化为产业经济优势,致力于打造金华国际陆港、国际国内双循环示范经济区、“一带一路”中欧班列集结中心,积极推动通道优势向枢纽经济转型升级。本文对金华市建设生产服务型国家物流枢纽的基础条件进行分析,以金华建设生产服务型国家物流枢纽为例,研究通道经济向枢纽经济转变的实践过程。 相似文献
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开展水土流失监测是水土保持监管的重要手段。文章以广西沿海高速公路改扩建工程一期工程水土保持监测实践为例,分析了工程建设水土流失特点,介绍了水土保持监测技术和方法,并通过对工程实例监测结果的分析评价,提出了水土保持监测工作中易出现的问题及相应的解决方案。 相似文献
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Caspar G. Chorus 《Transportation Research Part A: Policy and Practice》2012,46(7):1003-1012
This paper studies to what extent the Logsum-measure of user benefits relates to travelers’ perceptions of choice set-desirability and choice-satisfaction. Knowing these relations is important since researchers have recently started to analyze and interpret user benefits in general – and Logsums in specific – in terms of these more behaviorally oriented notions, rather than in terms of expected utility. Participants to a stated route choice experiment were asked to indicate, after each choice made, to what extent they considered the choice set to be desirable, or to what extent they were satisfied with the chosen alternative. These measurements were correlated with Logsums that were computed for each choice situation. In addition, the paper derives a regret-based Logsum (which gives the expected regret of a choice situation) and presents a comparison with its utilitarian counterpart. Also for this regret-based Logsum, correlations with desirability- and satisfaction-ratings are computed. As a general finding, it appears that all computed correlations are rather weak. This suggests that, at least in the context of our data, the utility-based Logsum and its regret-based counterpart appear to have only a fairly weak connection with the behavioral notions of choice set-desirability and choice-satisfaction. 相似文献
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隧道及地下工程结构防排水技术的发展和应用 总被引:4,自引:0,他引:4
文章总结了大瑶山隧道修建以来其复合式衬砌结构防排水试验研究和应用情况,介绍了塑料防水隔离层的防水机理及各种防水型式的优缺点,提出了改进建议. 相似文献
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通过研究汽车与船舶的油耗特点,结合燃油种类与CO_2排放量的关系,建立了计算公路运输与水路运输单位耗油量与单位CO_2排放量的数学模型。通过敏感性分析,研究车速或航速与载货率对车辆或船舶单位CO_2排放量的影响。以从厦门港到盐田港的干散货运输为例,做了节能减排计算分析,并将结果与用其他方法获得的结果对比。在此基础上,对公路运输与水路运输节能减排做了敏感性分析研究,可以计算出能够体现水路运输节能减排优势的临界货运量。结果表明本文中介绍的方法能够为核算、比较公路运输与水路运输的节能减排效果提供更科学的量化参考。 相似文献
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Recent years have shown a rising popularity of the concept of resilience—both theoretically and empirically—in complex systems analysis. There is also a rising literature on resilience in the transport and spatial-economic field. The pluriform interpretation of resilience (e.g., engineering vs. ecological resilience) is related to methodological differences (e.g., stability in dynamics vs. evolutionary adaptivity). But in all cases the fundamental question is whether a complex system that is subjected to an external shock is able to recover, and if so, to which extent. The present paper [Based on presentation from cluster 6 (Accessibility) of the Nectar 2015 conference in Ann Arbour, USA.] aims to add a new dimension to resilience analysis in spatial systems, by addressing in particular the relationship between spatial accessibility at a municipality level and the resilience outcomes of the spatial system concerned. It does so by investigating to which extent accessibility of Swedish and Dutch municipalities has mitigated the local shock absorption from the recent economic recession. In our study the shock absorption capacity of municipal accessibility is estimated by analysing the relevant resilience indicators for the period concerned. In this context, conventional resilience indicators based on either multivariate complex data (in particular, the Foster Resilience Capacity Index) or employment data (in particular, the Martin Resilience-Employment Index) are confronted with spatial connectivity data based on local accessibility measures, so that geographical mobility may be regarded as one of the shock-mitigating factors. The empirical analysis is carried out for two countries which have both proven to be rather shock-resistant during the recent economic crisis, viz. Sweden and The Netherlands. Clearly, the geographical structure of these countries forms a sharp mutual contrast, viz. a spatially dispersed economy with a few distinct urban concentrations versus a spatially dense economy with one major metropolitan centre (the Randstad), respectively. Our experiments are carried out for the 290 municipalities in Sweden and 40 COROPs in The Netherlands. Our research findings show relevant and new insights into differences in the local recovery potential in Sweden and The Netherlands. 相似文献
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