城市交通网络对工业用地隐性转型的影响机理研究 ——以武汉市为例

研究目的：依据城市工业用地转型的隐性内涵及其驱动理论,探究城市交通网络对工业用地隐性转型的影响机理,以助推城市交通结构优化和工业新型化发展。研究方法：工业用地隐性形态评价模型、核密度估计、地理加权回归模型和对数衰减函数。研究结果：（1）武汉市主城区工业用地隐性转型发展非均衡性较强;（2）武汉市主城区高速路、主干道、次干道、支路对工业用地隐性转型驱动作用显著并存在明显空间异质性;（3）不同等级道路对工业用地隐性转型廊道效应的吸引力差异表现为主干道最高,次干道次之,而铁路、高速公路、支路对其具有排斥作用,工业用地隐性转型受主干道、次干道影响的效应偏好显著。研究结论：为纾困城市工业用地内部结构优化与转型升级,应重点实施内涵建设和差异化空间管控,协同路网结构优化和工业用地隐性转型,以引导经济要素流动为目标优化城市交通网络,创新城市工业用地管控方式。     

长株潭交通运输业发展循环经济的策略研究

长株潭交通运输业发展循环经济对于促进长株潭两型社会发展具有重要的意义。结合长株潭地区的特点从政策措施、技术措施和管理措施对铁路、道路、水路和航空分别提出了适合长株潭地区发展循环经济可利用的方法和技术。并就换乘和与邻接行业之间的循环利用两个方面分别提出长株潭城市群交通运输行业发展循环经济可利用的方法。     

清代食盐流通体制中“引岸制”之分析

清政府采取引岸制食盐运销体制,赋予一些商人食盐垄断权,商人因之获得暴利,国家只对盐商进行管理和征税,从而使财政得到保证,进而形成了官商相互勾结共分盐利的局面。引岸制虽然在最初满足了国家财政和商人逐利的目的,但最终的结果是食盐商品成本上升,价格高昂,流通阻滞,进而导致国家政治进一步衰败,法制进一步瓦解。     

滇越铁路与滇南经济带的形成与发展

1910年滇越铁路全线通车,对云南社会经济产生了深远影响,地处滇南的红河地区首当其冲。蒙自、个旧、开远等城市经济迅速增长,铁路沿线各城镇的兴起繁荣,为滇南经济带的形成与发展奠定了重要的历史基础。     

铁路建设对区域产业影响的研究——以向莆铁路建设对莆田产业的预期影响为例

铁路建设对沿线地区的社会经济发展将产生重大影响,铁路发展有助于优化综合交通运输体系,促进区域经济协调发展,有利于社会生产力布局和产业结构的调整等等。文章在对莆田区域经济发展优势和现状分析的基础上,阐述了向莆铁路建设对莆田区域经济发展的作用,并依据向莆铁路经济带主导产业群选择的主要路径,提出了向莆铁路沿线(莆田段)产业布局的战略构想。     

A strategic approach to improve sustainability in transportation service procurement

This paper focuses on the procurement of full truck-load transportation service with the view to ensuring sustainability in transport logistics. The carrier assignment problem (CAP) involved in truck load contract auction is studied using a complete enumeration method and heuristic approach. Performance of both methods is compared in terms of solution quality and computational time based on the results of sample problems considered. Also, the impact of combinatorial bidding on reducing empty haul in real world case is analyzed and environmental sustainability is achieved through reduction in carbon foot print.     

论京沪高铁桥上CRTSⅡ型板式无砟轨道施工技术

以京沪高铁桥上CRTSⅡ型板式无砟轨道施工为例,介绍了无砟轨道的基本结构、施工特点及难点;叙述了无砟轨道的施工工艺流程及工艺;阐明了无砟轨道施工中测量工作内容及轨道板精调注意事项;并对施工过程中的主要试验检测项目进行了陈述。文章对同类高铁CRTSⅡ型板式无砟轨道施工具有一定的借鉴。     

MRP库存管理在冷藏箱调运中的应用

文中对MRP(Material Resources Planning)的原理进行了说明,结合某班轮公司的实际冷藏箱设备调运的流程,阐述MRP在调运冷藏箱中的运用,尽可能的降低库存,提高冷藏箱设备的周转率。     

Hub location problems in transportation networks

In this paper we propose a 4-index formulation for the uncapacitated multiple allocation hub location problem tailored for urban transport and liner shipping network design. This formulation is very tight and most of the tractable instances for MIP solvers are optimally solvable at the root node. While the existing state-of-the-art MIP solvers fail to solve even small size instances of problem, our accelerated and efficient primal (Benders) decomposition solves larger ones. In addition, a very efficient greedy heuristic, proven to be capable of obtaining high quality solutions, is proposed. We also introduce fixed cost values for Australian Post (AP) dataset.     

Exploring the use of travel information – identifying contextual market segmentation in Seoul, Korea

As the amount of information is rapidly growing, and ubiquitous urban environments are emerging, the question which kind of information to provide is a major challenge for commercial and public travel-information service providers alike. This paper reports the analyses of recent data, collected in Metropolitan Seoul, about the acquisition of travel information. The study applies CHAID analysis to find homogeneous segments in travel information acquisition. Findings indicate that contextual variables are crucial to explain information acquisition behaviour, depending on decision context. The implication is that both socioeconomic and contextual variables are important to better understand the acquisition (and provision) of travel information. The results have important implications for managers and policy-makers, in particular in the way they respond to dynamic, contextual market segmentation.