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<正>中水利用促进减排减排,首要的是污水排放问题。有的服务区就坐落在水源地,污水排放解决不好直接影响当地群众的吃水卫生。为此,陕西高速公路服务区某分公司提出实施中水利用工程。什么是中水呢?中水就是指PH值等于7,不呈酸性也不呈碱性的中性水。  相似文献   

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新加坡是世界上汽车密度最大的国家之一,每公里道路平均拥有81辆汽车,而日本和英国却分别为43辆和27辆。由于国土狭小,土地资源十分有限,因此新加坡断然采取了科学规划城市、大力发展公共交通、限制私人购买小汽车的举措,全国交通秩序井然,汽车畅通无阻,空气污染很轻即使在最高峰时段,车辆的运行速度也在每小时30公里以上。新加坡综合治理交通的经验,值得借鉴。 一、优先发展公交 新加坡政府的指导思想十分明确,要从根本上解决城市的交通问题,必须大力发展公共交通,特别是轨道交通。 1.“组团”式的发展 新加坡在城市的规划和建设方面富有创…  相似文献   

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《人民交通》2006,(7):56-57
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《人民交通》2006,(9):28-29
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隧道支护和衬砌方法,包括喷射混凝土的争议已经很多,莫里斯·琼斯与从业者和供应商一起讨论这一成熟的技术.  相似文献   

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只遭受过一次飓风的人,往往一听到警报,就变得六神无主,不知所措.相比之下,那些经常遭受飓风的人,就能镇定自若,他们知道应该做哪些准备,能够应对周围发生的巨大变化.这种卓越的表现,就来自数次变革后所产生的"接种效应".  相似文献   

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With increased liberalisation in major air transport markets, the intensity of competition has increased amongst air carriers. Airlines have responded to the competitive pressures in many ways, one of which has been the formation of alliances. These alliances are linkages between the firms at various operational levels. They go beyond the common interlining agreement to encompass certain marketing and cost-reducing features. However, the question is how the success of these alliances can be ensured? While companies' culture compatibility is important and much has been written in that area, this paper focuses on factors that affect operational success of airline alliances. The operational success is measured by the change in the level of partners' inter-hub traffic due to formation of the alliance. This research has developed a methodology which could be used as a management tool to measure alliances' operational success before embarking on such agreements. The analysis of recent major alliances covering 52 inter-hub routes suggests that the main factors ensuring the alliances' operational success are: the partners' network size and their compatibility, the frequency of service between the hubs of the partners, the flight connection time at the hub and the level of competition on their network.

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●用人哲学 业界曾流传一句话:"郭台铭喜欢用没有退路的人."郭台铭的鸿海公司内部员工观察郭台铭用人的一大原则,就是看他有没有卖命的决心,而没有退路的人通常都愿意全力以赴.  相似文献   

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《现代隧道技术》2004,(Z1):16-19
2002年6月,下穿希斯罗机场路段、上跨希斯罗快车道隧道的机场双孔交通隧道(ART)的其中一孔隧道开始施工.一年以后,也就是2003年6月,第二孔隧道胜利完工,而且更重要的是实现了地层位移最小及对机场运营和希斯罗快车道系统无影响的目的.  相似文献   

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Travel time ratio: the key factor of spatial reach   总被引:3,自引:0,他引:3  
Dijst  Martin  Vidakovic  Velibor 《Transportation》2000,27(2):179-199
An important aspect of reach and accessibility is the time people are willing to spend on reaching activity places. In this paper we see the issue of travel time in an alternative way. Instead of looking at travel time separated from time spent on activities, we examine the relation between travel time and stay time. We operationalize this relation with the concept “travel time ratio”. A hypothetical framework underlying these travel time ratios is displayed. We show that for similar types of activity places the value of travel time ratio are in accordance with each other. We find large differences between trips for mandatory activities and trips for discretionary activities. The results indicate the stability of the travel time ratios. Finally, some implications for future research and policy will be mentioned. This revised version was published online in June 2006 with corrections to the Cover Date.  相似文献   

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Annual electric bike (e-bike) sales in China grew from 40,000 in 1998 to 10 million in 2005. This rapid transition from human-powered bicycles, buses and gasoline-powered scooters to an all-electric vehicle/fuel technology system is special in the evolution of transportation technology and, thus far, unique to China. We examine how and why e-bikes developed so quickly in China with particular focus on the key technical, economic, and political factors involved. This case study provides important insights to policy makers in China and abroad on how timely regulatory policy can change the purchase choice of millions and create a new mode of transportation. These lessons are especially important to China as it embarks on a large-scale transition to personal vehicles, but also to other countries seeking more sustainable forms of transportation.
Christopher CherryEmail:
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交通部在2000年实行<道路旅客运输企业经营资质管理规定(试行)>,为运输行业内的资源整合和优化,使客运企业向集约化规模化的方向发展提供了一个很好的政策平台,但中小民营运输企业仍然需要面对如何在新的市场环境中探索适合的经营模式的问题.  相似文献   

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Yang  Qiang  Chan  Catherine Y. P.  Chin  Kwai-sang  Li  Yan-lai 《Transportation》2021,48(5):2627-2662

This study aims to suggest a three-phased methodological framework based on the operational approach of quality function deployment (QFD) to improve the service quality and passenger satisfaction with China’s high-speed rail (HSR) by identifying the key passenger needs with regard the HSR seats. For the first phase, the collection of the voice of the customers/passengers (VOC), the processing of the collected VOC into need items and further into passenger needs of QFD would be explained in terms of knowledge management. For the second phase, a reference comparison-based fuzzy best–worst method is developed for determining the relative importance of passenger needs, with a particular purpose of coping with the uncertainty and ambiguity associated with qualitative assessment of respondents. For the third phase, the importance-performance analysis is performed to determine the improvement priorities for meeting passenger needs. Findings showed that Body-friendly seat structure and Reasonable layout of the seat are the two most important needs demanded by the passengers of second-class cabins, with the former being the top priority. The current study provides useful references for service operators of HSR to formulate development strategies for improving the seat comfortability, which subsequently contributes to improving HSR’s service quality and passenger satisfaction. Moreover, the proposed methodological framework for identifying the important passenger needs can be appropriately adjusted and expanded to similar transportation infrastructures and facilities.

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文章结合南昌市某实际工程,探讨了高速公路填砂路段施工过程的关键技术,重点从施工方案的确定、原地面的处理、排水层的施工,以及填砂施工流程等方面进行分析,以供参考。  相似文献   

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