排序方式: 共有142条查询结果,搜索用时 15 毫秒
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高铁线路引入航空枢纽已经成为新的发展趋势,国家发改委关于打造现代综合客运枢纽提高旅客出行质量效率的实施意见发布以来,多地开展了机场综合交通枢纽规划研究。分析明确杭州萧山机场的发展定位,预测未来萧山机场旅客吞吐量;基于萧山机场航空客流腹地,研究确定萧山机场高铁站合理吸引范围和旅客高铁与航空客流换乘比例,预测机场陆侧客流各集散方式客运量,分析杭州萧山机场高铁站客流。可为区域内类似机场高铁站客流分析研究提供一定的参考和借鉴。 相似文献
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近年来,我国城市建设日新月异,但是城市水生态污染严重,城市内涝频繁,国家大力提倡建设海绵城市。本文通过实际工程案例,探讨公共绿地中海绵城市的应用,期望能为海绵城市的设计提供一些思路。 相似文献
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Juan Carlos Martín Augusto Voltes-Dorta 《Transportation Research Part B: Methodological》2011,45(1):112-127
The econometric estimation of cost functions has been proposed in the literature as a suitable approach in order to obtain estimations of marginal costs, efficiency levels and scale elasticities for transport industries. However, regarding the airport industry, no significant attention has been paid in developing an airport-specific estimation methodology rather than adapting the procedures applied to other industries. The lack of comparable airport data is one of the causes which could explain the scarcity of this literature in the past, as well as the use of very limited approaches to explain airport technology. This paper tries to overcome these limitations by developing an airport-specific methodology to estimate a multi-output long-run cost function using an unbalanced pooled database on 161 airports worldwide. The specification of hedonically-adjusted aircraft operations, domestic and international passengers, cargo and commercial revenues in the output vector, as well as the calculation of input prices are discussed. Both technical and allocative inefficiencies are specified in the model using a Stochastic Frontier method that has been estimated through Bayesian Inference and Markov Chain Monte Carlo methods. 相似文献
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本文从"坚持以人民为中心"的发展立场、解决不平衡不充分发展问题、融入国内国际双循环、构建更高水平一体化的城市—区域、综合交通体系建设以及机场布局规划制度创新等多个维度,阐述了长三角一体化背景下规划新建苏州机场的战略价值和社会实践意义。 相似文献
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北京市大兴国际机场线为国内首条设计时速160 km的轨道交通线路,高架区间占比约39.2%。因无明确的规范可供参考,本工程设计在《地铁设计规范》基础上,参考相关铁路设计规范,根据功能需要,结合本线特点,完成了大兴国际机场线高架区间设计工作。详细介绍大兴国际机场线高架区间的主要技术标准,桥式选择、桥面布置、标准段设计、节点桥设计、共构结构设计、抗震设计等总体设计内容,并重点介绍共构结构设计。 相似文献
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It is important and also challenging to plan airport facilities to meet future traffic needs in a rapidly changing environment, which is characterized by various uncertainties. One key issue in airport facility development is that facility performance functions (delay levels as functions of capacity utilization rates) are nonlinear, which complicates the solution method design. Potential demand fluctuations in a deregulated aviation market add another dimension to the decision making process. To solve this problem, a deterministic total cost minimization model is proposed and then extended into stochastic programs, by including uncertainties in traffic forecasts. After the exploration of properties of the delay cost function, an Outer-Approximation (OA) technique which is superior to the existing discrete approximation is designed. After model enhancements, an efficient solution framework based on the OA technique is used to solve the model to its global optimality by interactively generating upper and lower bounds to the objective. Computational tests demonstrate the validity of developed models and efficiency of proposed algorithms. The total cost is reduced by 18.8% with the stochastic program in the numerical example. 相似文献
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Norman Ashford 《运输规划与技术》2013,36(1):5-21
Drawing from the experiences of highway and pedestrian planning, the author suggests a method of improving the method of designing airport terminals. The improved technique would use the concept of level of service to indicate the interaction of time with space provision. 相似文献
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针对国内机场地区对外客运交通配套发展相对滞后问题,基于综合运输发展的基本思想,在借鉴国内外先进机场地区做法的基础上,以经济社会发展为主线,定性提出三阶段发展理念,并以沈阳桃仙国际机场为研究对象进行探讨。为今后促进区域经济发展、构建机场综合交通枢纽、提升航空运输服务能力及竞争优势提供了思路。 相似文献
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