共查询到16条相似文献,搜索用时 15 毫秒
1.
This paper looks at the various types of hubs that have evolved in the air transportation network in the USA. Since deregulation of the industry at the end of the 1970s, the major air carriers have expanded their networks to become more competitive, and the number and types of hubs have grown accordingly. A connectivity analysis using a traditional matrix approach is used to derive indices which are the basis for the development of a connectivity classification scheme. In addition, the various service functions of hubs are explored. 相似文献
2.
This paper applies Granger causality tests to examine the causal relationship between air cargo expansion and economic growth in Taiwan for the period 1974–2006. The results of cointegration tests show a long-run equilibrium and bi-directional relationship between air cargo expansion and economic growth in the case of Taiwan. 相似文献
3.
Air transport globalization, liberalization and sustainability: post-2001 policy dynamics in the United States and Europe 总被引:1,自引:0,他引:1
Against a context of international crisis in the air transport industry, this paper examines the implications of the ways in which strategies developed by key air transport stakeholders, as well as the contemporary dynamics of the globalized, liberalized market place, impact directly on sustainability issues. More specifically, the paper has two objectives. First, it discusses the policy ramifications of the interrelationships between the concepts of globalization, liberalization, and sustainability within the air transport industry. Second, the paper explores the import of these interrelationships as they interconnect with stakeholder strategies in the differing geopolitical contexts of the US and EU. Particular attention is given to airline network and frequency strategies. The paper concludes that while the financial sustainability of the airline industry is the overwhelming concern today, if this is essentially the short-term crisis that the airline industry claims it to be, the longer-term predictions of air transport growth will again bring environmental sustainability issues to the fore. 相似文献
4.
The liberalisation of air transport in the European Union encouraged a proliferation of new entry airlines exploiting the opportunities offered by minor airports. This was particularly apparent in France where “third level” airports experienced growth associated with start-up airlines using low-capacity aircraft. A summary of these trends is followed by a detailed examination of the Centre-East District, which demonstrates that the aspirations of both airlines and airports have been compromised by recent restructuring of the French airline industry. Far from providing greater competition, deregulation has increased the quasi-monopoly of Air France as market forces proved to be stronger than liberalisation. As a result, many third level airports face an uncertain future, especially in the light of the terrorist attack on the United States and its likely effect on airline economics. 相似文献
5.
Tzu-Yun Chiou Hing Kai Chan Fiona Lettice Sai Ho Chung 《Transportation Research Part E: Logistics and Transportation Review》2011,47(6):822-836
Recently, many companies have recognized the concepts of green supply chain management or supply chain environmental management. However, relatively little research attention has been devoted to the consideration of relations between greening the supply chain, green innovation, environmental performance and competitive advantage. Hence, this paper aims to bridge this gap by providing empirical evidence to encourage companies to implement green supply chain and green innovation in order to improve their environmental performance, and to enhance their competitive advantage in the global market. A model is constructed to link the aforementioned constructs. Data were collected through a questionnaire-based survey across 124 companies from eight industry sectors in Taiwan. The data are analyzed using Structural Equation Modeling and the results from the final measurement model are used to evaluate the structural model that verifies the significance of the proposed relationships. A prominent result of this study is that greening the supplier through green innovation contributes significant benefits to the environmental performance and competitive advantage of the firm. 相似文献
6.
Finding time and cost efficiencies associated with preliminary and final design of transportation projects has become increasingly difficult. Major new complexities present interesting and challenging project management issues and many agencies have incrementally adapted the project development process to improve efficiencies. Yet our understanding of the project development process is limited and the incremental changes in the process have not resulted in major modifications in the way in which transportation project development is approached for most agencies. A time honored method for elucidating problems with project development and potential solutions to them has been through the use of governmental audits. For example, over the past 30 years some 14 performance audits and evaluations have conducted of the California transportation project development process. These California audits have suggested that voter or legislatively approved projects, in terms of time, cost, or scope, significantly enhance project efficiencies. In this study, we examine time and cost project development efficiencies between voter or legislatively approved projects and projects with standard scopes. We find no significant evidence that state highway projects with highly defined, voter or legislatively approved project scopes, time, or costs are any more likely to have lower project development costs or times than projects with non-voter approved scopes. 相似文献
7.
SeMS and sensibility: Security management systems and the management of risk in the Canadian Air Transport Security Authority 总被引:2,自引:0,他引:2
Following International Air Transportation Association requirement for all member airlines and airports to have a security management system (SeMS) beginning 1 March 2007, many organizations are looking to learn from safety and quality management systems. Without specific guidelines or best practices, organizations are forced to imitate these processes designed for different goals. Since safety, quality, and security environments operate on radically different principles, SeMS implementation must take a different tack. The case of the Canadian Air Transport Security Authority illustrates the importance of a custom-designed program that meets public and corporate needs. The Authority is responsible for security screening of passengers, non-passengers, and baggage within selected airports. As a crown corporation with a precise statutory mandate and regulatory environment, the development of a SeMS illustrates some of the key problems for the application of SeMS to larger organizations. 相似文献
8.
Xiao Xiao Robert Manning Nathan Reigner 《International Journal of Sustainable Transportation》2019,13(9):692-702
Transportation networks in parks and recreation areas provide travelers recreation opportunities and often support multiple transportation modes (e.g., hiking, walking, biking). In recreation areas, the quality of transportation service may be monitored and evaluated differently than in traditional transportation contexts. However, few studies have examined approaches for defining and monitoring the quality of transportation service and recreation experiences. This study applies traffic monitoring models to monitor (1) the quality of transportation service through the Levels of Service (LOS) framework and (2) travelers’ recreation experiences through the indicators and standards framework simultaneously on the Burlington Bike Path (BBP), a typical shared-use transportation recreation facility in Vermont. Results identify the temporal pattern of visitors use and the mode splits between cyclists and pedestrians. Moreover, study results show that the majority of travelers use the BBP for recreation or mixed purpose of recreation and commute. Study results build quantitative relationships between LOS and indicators and standards of quality that will help inform management of transportation in the context of recreation. The indicators and standards framework can help define the thresholds of acceptable levels of transportation service through the LOS framework. The relationships between LOS and the indicators and standards framework help build a robust and fully parameterized transportation planning and management framework for parks and recreation areas. Study results suggest quantitative guidelines that can be used to evaluate and monitor the quality of transportation performance for shared-use paths in parks and recreation areas. 相似文献
9.
Both the sustainable development of China's economy and the deregulation of the China air transport market have acted as a spur for the halting development of low-cost carriers (LCCs) in China. To analyze the development trends of LCCs' network in China, this paper took Spring Airlines, the only LCC in China as an example. First, the winter flight plans of Spring Airlines from 2005 to 2013 were collected. Secondly, the development trends of air transport network of Spring Airlines were explored with methods of mathematical statistics and social network analysis. Additionally, the development trends were analyzed from the levels of navigable cities, air routes and air transport networks. The results show that although Spring Airlines actively launched air routes between tourist cities with non-class I airports, its network has been transformed from a star structure into a complex one with multi-hubs. The development process of the Spring Airlines network can be separated into three stages. In addition, the problems and evolution trends of its network are discussed further. 相似文献
10.
John Tuppen 《International Journal of Tourism Research》2000,2(5):327-344
In the French Alps the last decade has been dominated by efforts to regenerate winter sports resorts. This follows an extended period of rapid growth, resulting in the demographic and economic revival of many alpine communities. However, flaws in the process of development were exposed in the late 1980s. Given the huge scale of investment in tourist facilities and the numerous livelihoods dependent on winter sports, restructuring became vital. The present paper analyses the causes of recent problems and evaluates related remedial policies, showing how implementing change can be complicated by the numerous actors involved and their frequently divergent strategies. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献
11.
This study investigates interdependence among hotel revenue centres, using dataset on room guests and customers of auxiliary departments in Seoul, Korea. Spatial econometric methods are applied to examine the causal relationships between demand for rooms and auxiliary facilities. Results suggest that while the room demand significantly contributes to demand for auxiliary services, the reverse does not hold. 相似文献
12.
The advent of the EU–US Open Skies Agreement has been widely anticipated. A number of consequences have been predicted, for example, impacts on fares, on passenger volumes, choice and on consumer welfare. Airline costs are also predicted to fall as a result of increased competitiveness and increased cooperation among airlines. In the short period since the implementation of the Agreement, it is relatively easy to assess the supply-side changes that have been made, but more difficult to make wider judgements. For example, can traffic growth be attributed to Open Skies and does airline and alliance market power result in less fare flexibility with consequently less influence on changes in passenger volumes? Have airline costs changed and what has been the source of the savings? This paper offers some insight into the data that will be required to make these and other wider judgements and discusses some methodological difficulties. 相似文献
13.
在系统介绍主辅分离的定义、内涵等相关理论及现阶段主输分离改革的创新与突破的基础上,提出了主辅分离时机成熟的表述式,并通过建立关联/效益模型对辅业进行了4个象限的分类,同时论述了主辅分类的相应措施。 相似文献
14.
This paper examines motorists’ speeds in wet weather compared with non-hazardous dry conditions (the control) for two separate survey locations on the M4 motorway, south Wales. One site was surfaced with conventional asphalt, whilst the other location had a porous asphalt wearing course. The aim of this study is to establish whether drivers compensate for the additional risks posed in rain by reducing their speed in wet weather. Drivers are slowing down in wet weather, but only marginally; and although the speed reductions proved statistically significant, they are insufficient to compensate for the additional wet weather risks imposed. Such findings have broader implications for the government’s road safety targets. 相似文献
15.
Heesup Han 《旅游业当前问题》2018,21(6):680-702
This research sought to investigate international medical travellers’ post-purchase decision-making process by utilizing key concepts in medical tourism (i.e. medical product quality, effective communication, satisfaction, switching costs, and past experience [first-time vs. repeat experiences]). A visitor survey was conducted at medical clinics. Results of the structural model generally supported the proposed relationships among study variables. The role of study variables in generating revisit intention was found to differ significantly between new and repeat customers, and the strength of the proposed relationships was generally greater in the repeater group than in the first-timer group. This study also identified the mediating impact of satisfaction and switching costs. Additionally, the prominent role of satisfaction in the proposed theoretical framework was identified. The results of a structural-model comparison also revealed that a quality–satisfaction linkage was stronger than its alternative ordering in the proposed framework. Overall, this study provides great insight into medical travellers’ post-purchase behaviours. 相似文献
16.
Athanasios Papadaskalopoulos Anastasios Karaganis Manolis Christofakis 《Transport Policy》2005,12(6):37
This article explores the spatial and development implications of the Pan-European Transport Axes in the Balkans. For that purpose, the potential Development Poles and Axes are determined, on the basis of size, the location of cities, their interconnection and their role as hubs of the Pan-European axes. This is achieved by means of the formation and implementation of a methodology based on the use of special statistical applications. According to data analysis, three geographical units arise: Central Core, Peripheral Zone, Perimetric Zones. In the analysis that follows, Advantages, Weaknesses, Opportunities and Threats are examined in each case and suggestions are made as regards the policies required. 相似文献