U.S. import/export container flow modeling and disruption analysis

International containerized freight movement is a vital part of the supply chain for many companies, and a critical element of moving consumer goods to points of retail sale within the U.S. Containerized imports also present a clear security concern (e.g., terrorists attempting to ship “dirty bombs,” chemical, biological or even nuclear weapons, into the U.S. in a shipping container). The goal of the research presented here is to create a modeling tool for analyzing flows of U.S. imports and exports of containerized freight, and the potential changes in those flows under a variety of conditions (e.g., port disruptions, extensive security-related delays, etc.). Our focus is on movements through maritime container ports, and not overland movements between the U.S. and Canada or Mexico.The network model, referred to as the System for Import/Export Routing and Recovery Analysis (SIERRA), represents container movements between the U.S. and 46 other countries that account for the vast majority of U.S. imports and exports. The SIERRA model is a network equilibrium model that predicts flows between foreign countries and North American ports, the total volumes handled (import and export) by each port, the modal volumes (truck and rail) moving domestically into and out of each port, and volumes between each port and a set of transportation analysis zones within the U.S.     

The impact of scale on energy intensity in freight transportation

This paper analyzes energy intensities of ships, diesel–fuelled railways, trucks, and aircraft, using publicly available data. The analysis suggests that differences in operation, not technology, explain most of the variation in energy intensity within and across modes. Among the operational characteristics, most important is the amount of cargo weight transported per vehicle and therefore the scale of the respective transportation system. It is found that each mode has a characteristic envelope in an average energy intensity versus average cargo weight diagram, and estimates of the elasticities of energy intensity with respect to load size are made.     

铁路货运服务质量评价探讨

铁路货运服务质量关系到铁路企业形象和效益。采取定性和定量相结合的研究方法,建立功能质量测评体系,根据货运部门自身的特点建立相应的技术质量量化测评体系,最终将指标数量值转化成评定的等级。并通过实例验证了该评价方法的现实性和可操作性。     

铁路货运站门卫信息化管理模式分析

概述铁路货运站信息化建设现状,在对铁路货运站门卫信息化管理需求分析的基础上,提出满足需求分析的3种门卫管理模式：严进严出预发门证模式、宽进严出自动发卡模式、严进严出预约汽车模式。介绍了3种模式的作业流程,并从自动化程度、货场安全管理、对货运站周围交通压力的影响等方面分析不同模式的优缺点,提出不同模式的适用条件,为货运站在信息化建设过程中选择门卫管理方案提供参考。     

Intention and willingness to pay for green freight transportation: An empirical examination

The objective of this paper is to explore what motivates consumer intention and willingness to pay for green transportation. The model is based on the theory of planned behavior and explains the relationship between consumer attitude, perceived behavioral control and peer pressure on intention and willingness to pay for a t-shirt that was transported using energy efficient fuel. Data from a survey of U.S. consumers is analyzed. Results suggest consumer attitude and peer pressure are positively associated with intention which is positively associated with willingness to pay. High levels of consumer attitude, perceived behavioral control and intention suggest a positive outlook for organizations investing in green transportation initiatives. Results also suggest a need for organizations and government to market and educate consumers and citizens about the positive implications of green transportation and using energy efficient fuel.     

港口布局规划决策中的海运运价测定方法的研究

本文在对港口布局规划决策中所使用的推测海运运价的传统推测方法作一评述的基础上,提出：从分析多种因素影响下的市场运价入手,利用数理统计理论,来测定海运运价并揭示海运运价的内在规律。文章以矿石进口为例,利用该方法对船型和运距对运价的影响进行了分析。     

“十三五”时期我国综合交通投资和运输形势分析

以综合交通运输行业发展中的建设投资、路网设施、旅客运输、货物运输方面统计数据指标为基础,通过分析总量指标在“十三五”时期的绝对值、增速,以及各交通运输方式结构指标变化情况,并与“十二五”时期相关指标变化进行对比分析,总结了“十三五”时期的综合交通建设投资、旅客运输和货物运输形势,表明“十三五”时期是综合交通运输从高速度增长向高质量发展的过渡阶段,具体表现为总量扩张趋缓、结构优化明显、升级动力减弱等三大特征,体现在交通投资和供给需求规模增速放缓,高快速交通方式的供需比重增加,交通生产投入的边际产出趋向递减等方面。     

昆明局集团公司卸车能力提升对策

为提升昆明局集团公司卸车能力,满足全路货运装车需求,阐述卸车能力影响因素,从系统角度构建铁路三级服务卸车系统,包括运输通道子系统、枢纽作业子系统与货运站点作业子系统.针对昆明局集团公司卸车能力紧缺的现状,分析各级服务子系统的能力,提出相应的能力提升措施,并分析其效果.经研究可知,通过实施运输组织优化、车流径路调整、货运...     

新冠肺炎疫情对铁路货运的影响及对策探讨

2020年初的新冠肺炎疫情对供应链上下游企业影响的波及,导致全社会货运量均受到不同程度的影响.在分析疫情对铁路货运量的影响基础上,针对货运总体需求下降、运输组织效率有待提高、营销激励机制有待加强等问题,通过畅通信息渠道、快速应对市场需求变化、建立"互利共赢"合作机制促进企业复工复产,通过加强运输组织、优化货运产品结构提...     

桂林市道路货运企业转型的对策

文章针对桂林市传统道路货运企业和桂林市现代物流业发现现状,分析现代物流企业与桂林市传统道路货运企业存在差距的原因,提出了桂林市传统道路货运企业向现代物流企业转型的相关对策。