首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   46篇
  免费   0篇
公路运输   8篇
综合类   6篇
水路运输   18篇
综合运输   14篇
  2021年   1篇
  2020年   2篇
  2017年   1篇
  2016年   2篇
  2015年   2篇
  2014年   3篇
  2013年   5篇
  2012年   1篇
  2010年   7篇
  2009年   1篇
  2008年   6篇
  2007年   5篇
  2006年   3篇
  2005年   3篇
  2004年   1篇
  2003年   2篇
  2001年   1篇
排序方式: 共有46条查询结果,搜索用时 15 毫秒
1.
This paper analyzes the effect of universal service policies on the airline markets of five European Union countries (France, Germany, Italy, Spain and the United Kingdom) in the period 2002–2010. Results show that airfare discount schemes for island residents raise demand and positively affect competition and the number of flights at the route level. These effects are evident in France and Italy, but are particularly marked in Spain. By contrast, public service obligations (PSOs) reduce competition on the protected routes, while their effect on the number of flights differs depending on national regulations. In Spain, routes protected with PSOs have greater flight frequencies than those on unprotected routes of similar characteristics, but in France, Italy and the UK the opposite result is found. The empirical model also finds that on routes with low-cost airlines market concentration is smaller and there is a larger number of flights. This result is relevant for the design of universal service policy, since in recent years low-cost airlines have entered a number of thin routes and have increased access to air transportation.  相似文献   
2.
本文采用文献资料、数理统计等研究方法,对辽宁省第12届运动会竞赛成绩进行认真的分析探讨,为各市制定干预对策提供了科学的依据。  相似文献   
3.
Intermodal rail/road freight transport has always been considered as a competitive alternative to its road freight counterpart in the European medium- to long-distance corridors (markets). Such consideration has been based on the increasing competitiveness of some innovative rail services and the existing and prospective performance of both modes in terms of the full social – internal or operational and external – costs. The most recent innovation of rail technologies and related services launched by some European railway companies, still at the conceptual level, is the Long Intermodal Freight Train (LIFT). This is supposed to be a block train operating in long-distance corridors (markets) with a substantial and regular freight demand.This paper develops analytical models for assessing the performance of the LIFTs, the already-operating Conventional Intermodal Freight Trains (CIFTs), and their road counterpart as well. The performance consists of the full – internal (private) and external – costs of the door-to-door delivery of loading units – containers, swap-bodies, and semi-trailers. The internal costs embrace the operational costs of the transport (rail and road) and intermodal terminal operators. The external costs include the costs of the impacts of door-to-door delivery of loading units on society and the environment. These negative externalities include noise, air pollution, traffic accidents, and congestion.The models are applied to a simplified version of intermodal and road transport system using inputs from the European freight transport sector. The aims are to compare the full costs of particular modalities in order to investigate the potential of the LIFTs as compared with the CIFTs in improving the internal efficiency of the rail freight sector and its competitiveness with respect to its road counterpart. In addition, the paper attempts to assess some effects on the potential modal shift of EU (European Union) transport policies on internalizing transport externalities.  相似文献   
4.
常绚 《城市车辆》2003,(2):26-28
2002年是我国皮卡增长的又一个高峰期,激烈的竞争促进了皮卡行业整体的发展,也促使皮卡新品层出,产品呈现多元化。2003年将是皮卡的巩固阶段,皮卡国内外市场将会稳定增长,竞争层面将会拉开,各有侧重。继2002年低价位SUV畅销后,2003年皮卡向多功能商务车升级将是一个热点,另外在竞争方面将更多地打服务牌。  相似文献   
5.
In response to the trends of manufacturing revitalization and workforce shortage in the U.S., this study investigates how Foxconn changes accessibility to industrial employees by automobile and by transit in Southeast Wisconsin. Results suggest that there is a mismatch between the Foxconn site and the areas with high accessibility to industrial employees. With a great demand for labor, Foxconn reduces employee accessibility by automobile throughout the region, while its impact on employee accessibility by transit is more localized. The results inform industrial firm locations, workforce housing development, and transportation service provisions. The analysis framework shifts the angle of accessibility research to focusing on the perspective of employers, and it can be applied to investigate future large-scale economic development projects.  相似文献   
6.
This paper analyses the terms and the results of a sample of some recent Brazilian bidding processes for the concession of public passenger transport services: namely, urban and metropolitan bus or regional coach services. The analysis is based on selected issues relating to competitiveness and upon the legal framework that applies in this sector. It was concluded that, given the lack of bidding processes for concessions in the bus and coach sector in Brazil, the fact that some bidding processes have been carried out should be considered a sign of progress. However, these auctions have not necessarily prioritised competitiveness, since many barriers to entry into the systems were imposed by the bidding terms. Future competitive tendering processes should seek to abide by stricter principles of competitiveness, if they wish to avoid the entire effort expended on conducting such processes serving only to mask nothing more than formal obedience to the law and to discredit the bidding process in the eyes of Brazilian citizens.  相似文献   
7.
本文采用文献资料法、比较研究法、数理统计等方法进行研究,论述了辽宁省各市体操运动发展态势,存在的问题,产生的原因,为采取干预对策提供科学依据,旨在促进体操竞赛成绩提高。  相似文献   
8.
9.
Gulf carriers, such as Emirates Airline, Etihad Airways, and Qatar Airways, have expanded aggressively and are creating an increasingly dense global network. These carriers’ future growth prospects, however, hinge on their ability to gain access to markets in Europe and America, for example. Existing bilateral agreements stifle the Gulf carriers’ ambitious expansion plans in some instances, and incumbent carriers lobby to restrict further market access. To contribute to this debate, the objective of this research is to empirically examine the effects of Gulf carrier competition on U.S. carriers’ passenger volumes and fares in international route markets. Based on data obtained from the U.S. Department of Transportation, the empirical results suggest that greater competition by Gulf carriers in U.S. international markets is associated with (1) significant growth in U.S.–Middle East traffic volumes and (2) small but statistically significant traffic losses and fare reductions for U.S. carriers in route markets connecting the U.S. with Africa, Asia, Australia and Europe.  相似文献   
10.
Express coach services compete for longer distance market with car and rail, and largely cater for the leisure, tourism, and visiting friends and relatives. markets. Britain deregulated its express coach system in 1980, and it is now opportune to examine long-term impacts of that change. The initial impacts were reviewed by the authors in 1986 (Robbins & White, 1986) but such impacts do not necessarily match long-term outcomes. Monitoring of the British system has been conducted by examining service changes and data on ridership, together with financial performance of the main operator groups and technical press coverage. It can be shown that a dominant position has been retained by the major operator (National Express), with a continued decline in the role of smaller independent operators in the all-year-round daily network. However, new competition has emerged from other large groups (most notably Stagecoach ‘Megabus’ in 2003). The paper analyses the operating and marketing strategies of the new operator and contrasts these strategies with those adopted in the 1980s. Implications for the future development of the network in Britain are outlined.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号