基于观念图平面可嵌入性分析的运输型物流企业营销管理

通过对数学中图的可嵌入性理论的引申和应用，提出观念图的概念，建构了观念的要素组合分析方法，为运输型物流企业观念营销的实施和管理提供方法论基础。     

论必要航空服务原则在中国空运管理制度之适用

必要航空服务原则起源于美国，后被各航空发达国家广泛采用。该原则适合中国国情，能合理调适开放民航市场与确保国内航线正常平稳发展的潜在冲突，对完善航空管理制度，平衡国家、航空公司以及乘客各方之利益将起到积极作用。但政府对航空公司之经济援助应受到一定限制，否则会对航空业造成过度干预，从而导致不公平竞争。必要航空服务原则的适用，要求完善我国的航线网络，并对我国航空管理法律制度产生诸多深刻的影响。     

Assessment of passenger benefits brought about by international airport projects

This study sets forth a method to calculate the passenger benefits of an international airport project and assesses the passenger benefits brought about by two international airport projects.An international airport project mainly increases the number of flights and the possibility of determining convenient timetables. It does not significantly decrease the flight time of international travel. Thus, the user benefits brought about by an international airport project cannot be expressed by the conventional concept of ‘traveling time’, which is the term generally used.In this study, the ‘Expected Value of Traveling Time’ and ‘Expected Value of Generalized Cost’ are presented as indexes to evaluate improvements in convenience brought about by international airport projects. The passenger benefits of two airport projects in Japan are measured by consumer surplus calculated from the demand function using these indexes.These indexes are accurately calculated taking into consideration factors such as scheduling connections between domestic and international transport, and so enable a grasp not only of reductions in flight time, but also of passenger benefits resulting from international airport projects, such as increases in the number of flights and reductions in the time required to make transfers during domestic travel.     

基于低碳物流的煤炭运输灰色关联分析

为对煤炭运输过程中碳排放进行评估,引入"电煤运输环节碳排放系数",应用不同时期火力发电的数量,测算出我国2003-2007年的电煤运输环节总的碳排放量,并将该排放量与相应的煤炭运输方式进行了灰色关联分析。结果表明,煤炭公路运输与CO2排放的关联度较为显著,水路运输与铁路运输与CO2排放的关联度相差不大,因此我国煤炭运输应当大力发展铁路运输和铁-海联运,煤炭运输向低碳物流化转型。     

关于南京发展交通物流的思考

以南京为例,介绍如何对交通物流系统进行规划,详细分析物流基地体系布局格局,服务体系主要内容,信息平台总体构架和功能等。     

铁路运输发展现代物流的策略分析

铁路运输作为物流的核心组成部分,对物流的推动作用越来越明显,大力发展铁路运输来促进物流业的发展是我国物流发展的重要举措。分析了铁路运输的现状,阐述了铁路运输发展现代物流的必要性,并针对铁路运输在物流发展中存在的不足提出了相应的对策。     

Maritime connectivity and agricultural trade

Seaborne shipping is the dominant mode of transport in international trade in agricultural products, and an increasing part of seaborne agricultural trade is carried in containers. Furthermore, the majority of world containers are moved through liner shipping services, that is, regular transport services provided by global shipping companies which comprise a dense network connecting ports and countries around the world. Using a theoretically consistent gravity equation and a novel identification strategy based on the use of intra-national trade flows, this paper investigates the effect of liner shipping connectivity on international trade in agricultural products. The results show that liner shipping connectivity has a positive and statistically significative effect on agricultural trade. Moreover, this positive effect can be observed for the majority of the agricultural products analysed and is also identified for countries at different stages of development. These findings appear especially relevant in terms of the objective of increasing less developed countries' participation in global agricultural trade.     

Robustness of the air transport network

This paper presents a methodology for the detection of critical airports (those whose isolation would cause the largest losses in network connectivity) in the global air transport network (ATN), based on simulating an attack on selected ATN airports using different adaptive selection criteria. The performances of several node selection criteria are compared, together with a new criterion based on Bonacich power centrality. The results show that most critical airports can be detected with an adaptive strategy based on betweenness centrality. The detection of such airports may help the development of contingency plans to develop an appropriate response to any airport closure.     

The evaluation of demand responsive transport services in Europe

Over the last decade Demand Responsive Transport (DRT) services have grown in popularity for several reasons including: the shortcomings of conventional regular bus and taxi services; shortcomings of special transport services; and new developments in community transport. Traditional dial-a-ride services have often been criticised because of their relatively high cost of provision, their lack of flexibility in route planning and their inability to manage high demand. The potential for overcoming these limitations may be realised through the introduction of telematics-based DRT and this has been widely demonstrated, for example, in recent research funded by the European Commission (e.g. the DGXIII-funded SAMPO and SAMPLUS projects). This paper provides an introduction to the concept of telematics-based DRT services and presents the results of the evaluation of a set of DRT technologies and operations at urban and rural sites across Europe. The paper offers discussion in terms of the key issues that influence the introduction of DRT services.