共查询到19条相似文献,搜索用时 89 毫秒
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目前,我国绝大部分集装箱道路运输企业的运输模式沿袭着传统运输方法,无论是运输进口集装箱还是出口集装箱,都需在运输当中,从港口堆场提取空箱或是将空箱送回堆场,存在一半的空箱运输现象,不仅运输企业成本高,而且造成物流资源和能源的浪费。 相似文献
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随着港口腹地对外贸易量的增加,腹地地区的集装箱量也不断增多,陆路集卡运输成本也成为了一个增加运输成本的重要因素之一。针对一些主要从事陆路运输的中小型企业而言甚至是关乎企业兴衰的主要问题之一,对一些大型企业而言也使得成本压力不断增大,所以如何解决陆路集卡运输中的空箱调运问题已经变得十分紧迫和重要。 相似文献
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集装箱运输方便、快捷、装卸效率高并且应用广泛,铁路货车使用集装箱运输时超载、偏载现象时有发生,需要加强对集装箱超载、偏重及一辆平车装载2只集装箱时整车超偏载的检测。建立了集装箱作业中集装箱超重、偏载检测计算模型和2只集装箱装一辆平车的超偏载检测计算模型。根据铁路集装箱堆场正面吊装卸集装箱作业流程,以正面吊对集装箱作业实时称重、偏载检测系统为基础,结合箱号自动识别、堆场电子地图定位和集装箱定位导航技术,建立了铁路集装箱堆场装卸作业信息系统,可杜绝正面吊起吊集装箱时F-TR锁勾连造成平车掉道事故,避免集装箱空重混装及整车超重,提高集装箱堆场正面吊作业效率和信息化管理水平,有效提高了集装箱存储、运输效率。 相似文献
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传统的集装箱运输如果是拉出口箱,一般是集装箱卡车先到提箱点提空箱,再到外贸企业装货后拉到出口港:如果是进口箱,则是集装箱卡车从港区装上重箱后拉到目的地卸货,再把空箱还到港口周边的集装箱堆场。这种“从出发点到目的地,一车到底”的传统运输模式在浙江宁波正被众多甩挂运输新模式逐渐取代。自2009年7月15日开始,宁波试点甩挂运输稳步推进,并将在全省范围内全面推广。 相似文献
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A liner container shipping carrier usually collects immediately-delivered goods that are produced by manufacturers in world factories, and transports the products to worldwide market destination by offering weekly shipping service. In practice, the carrier has to consider extra demurrage cost of containerized cargos incurred from waiting for weekly shipping service at ports. In this paper, we develop a mathematic programming model to maximize the carrier’s profitability by simultaneously optimizing the ship route scheduling and interrelated cargo allocation scheme. The nonlinear optimization model is transformed into an equivalent mixed-integer linear program, and its applicability is demonstrated by a case study. 相似文献
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在阐述铁路集装箱加快发展对人才队伍需求大幅增长新形势的基础上,分析当前全路集装箱人才队伍现状及队伍建设方面存在的问题,对加强铁路集装箱人才队伍建设提出建议:着力推进专业人才队伍建设工程,重点建立经营管理人才队伍培训体系,强力推进领导干部队伍素质建设工程,建立和完善人才培养、使用、激励有效衔接的闭合管理系统。 相似文献
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阐述集装箱运输在适应铁路实施多元化经营战略,发展货运核心业务、延伸铁路服务链条、开发多式联运中的优势及重要作用,分析影响集装箱铁路运输发展的主要问题,提出加快发展集装箱铁路全程运输经营服务的对策和建议。结合从事集装箱铁路运输经营的体会,就适应铁路实施多元化经营战略、加快发展集装箱全程运输经营进行探讨。 相似文献
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我国铁路集装箱运输存在运输效率低、运输效益差的弊端,其安全、快捷等优势远未得到发挥。对比铁路客运和货运的特点,提出铁路集装箱运输组织方式客运化的方向及实施条件和办法。 相似文献
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This paper aims to measure the perceived container leasing prices at different ports by presenting a two-stage optimization method. In stage I, we propose a practical liner shipping network design problem with empty container repositioning. The proposed problem further considers the use of foldable containers and allows the mutual substitution between empty containers to decrease the number of empty containers to be repositioned. In stage II, the inverse optimization technique is used to determine the perceived container leasing prices at different ports, based on the solution obtained in stage I. Based on a set of candidate liner shipping service routes, a mixed-integer nonlinear programming model is built for the proposed problem in stage I. The nonlinear terms are linearized by introducing the auxiliary variables. Numerical experiments based on a realistic Asia-Europe-Oceania liner shipping network are carried out to account for the effectiveness of our two-stage optimization method. 相似文献
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The role of container repositioning has become more important under the severe cargo shipping environment, affected by world trade growth, trade imbalance, slow steaming strategy and high container manufacturing cost. Low cost, better routing, and supplying equipment to higher yield cargo become the top criteria. A yield-based container repositioning framework is developed, followed by a constrained linear programming optimizing the container repositioning from surplus to deficit locations. The model incorporated change of destinations of empty containers and adjustment factors handling upsurge demand. The model is applied to optimize daily container repositioning operations with a better route, costs and equipment supply. 相似文献
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Akio Imai Koichi Shintani Stratos Papadimitriou 《Transportation Research Part E: Logistics and Transportation Review》2009,45(5):740-757
This paper addresses the design of container liner shipping networks taking into consideration container management issues including empty container repositioning. We examine two typical service networks with different ship sizes: multi-port calling by conventional ship size and hub-and-spoke by mega-ship. The entire solution process is performed in two phases: the service network design and container distribution. A wide variety of numerical experiments are conducted for the Asia–Europe and Asia–North America trade lanes. In most scenarios the multi-port calling is superior in terms of total cost, while the hub-and-spoke is more advantageous in the European trade for a costly shipping company. 相似文献