对煤炭重载铁路车站设计的分析

目前煤炭重载铁路从装车地站型、中间越行站或会让站站型,直到卸车地站型,基本形成了较完善的固定模式,车站设计日渐成熟.分析重载铁路车站设计与普通铁路车站设计方法的共性与特点,对煤炭重载铁路中间站、越行站或会让站设计以及装车站和卸车站的设计进行研究,以利于车站设计更好地满足煤炭重载铁路的发展.     

锦州站货场物流中心化研究

地处沈山线的锦州站是辽西地区最大的铁路货运办理站,主要办理整车、零担、集装箱等货运业务.运用SWOT分析法,对锦州站货场物流中心化的优势、劣势、机遇及挑战进行研究,提出局部改造现有货场,部分实现物流功能;利用地域特点实现物流化;长远考虑,融入规划,在松山新区新建铁路货运物流中心的建议.     

婺源站跨场转线作业的计算机联锁设计方法

当高速铁路四线并行时,车站的2个高速场间多属于距离近、地域狭窄的情况。为解决列车在2个高速场间的转线问题,提出在衔接道岔处分界和转线的计算机联锁设计方法 ,基于婺源站站型情况和分界问题分析,提出接发车、取消进路等跨场行车作业场景和相关技术,以及操纵跨场道岔场景和技术。该设计方法结合运输作业详述计算机联锁的具体实现方法,对解决同一调度中心管辖范围内不同车站或不同高速场之间难于互通的问题及促进运输作业的规范化具有重要意义。最后,对该转场作业的调度集中模式运输效率进行分析,证明设计方法的有效性。     

关于呼和浩特铁路局集装箱站建设规划的建议

随着我国经济快速发展，货主对铁路运输的服务质量提出了更高要求，集装箱运输逐渐成为铁路货运业务中不可或缺的重要部分。以呼和浩特铁路局集装箱办理站为研究对象，探讨集装箱运输存在的问题，分析影响集装箱运输发展的原因，结合内蒙古自治区经济发展及地域特点，提出集装箱办理站的规划意见，为呼和浩特铁路局集装箱办理站规划建设提供参考。     

铁道第三勘察设计院——铁道第三勘察设计院站场枢纽设计处

站场枢纽设计处是铁道第三勘察设计院专业设计处之一，技术力理雄厚，设计手段先进，主要从事新建与改建铁路枢纽、编纽站、客运站、区段站、工业站、港湾站、口岸站、轮渡站及中小车站、城市轨道交通、物流及货场、港区铁路、工矿企业铁路、     

客运专线及城际铁路中间站平面布置分析

中间站是客运专线和城际铁路最普遍、最常见、最基本的车站站型,这类车站的最大特点是到发线数量少,咽喉区布置简单,绝大多数没有其他方向引入,虽然种类不多,设计并不复杂,但关键是在选择站型时不能随意布置,或只考虑地形条件,必须满足运输组织的基本要求。通过阐述客运专线中间站的作业与站型布置的关系,在分析中间站在客运专线上布置相互关系的基础上,研究了中间站的各种站型设计规律,为客运专线及城际铁路中间站设计提供参考。     

西安站综合交通枢纽规划研究方案

西安站改扩建工程实施后,在站区内将形成集城际铁路(含部分高速铁路)客运、普速铁路客运、城市轨道交通、中长途公路客运、城市公共交通、出租汽车、社会车辆于一体的大型综合交通枢纽中心。在西安站站区规划设计中,重点研究车站改扩建方案,进行站房设计、站区交通流线设计、站前广场设计和对外交通疏解等,考虑各种交通方式的换乘与衔接,对西安站综合交通枢纽规划提出初步设想。     

铁路站线顺坡方案研究

根据站线顺坡设计问题,结合实际设计工作,以3股道会让站为例,在假设条件的基础上,根据不同的车站路基面横向坡度和车站站坪坡度分析站线顺坡问题,提出站线顺坡的5种解决方案,为解决站场设计工作中站线顺坡问题提供借鉴。     

铁路集装箱站的箱场及道路铺面设计

根据常用铺面结构类型及特性,在论述集装箱站铺面设计特点及主要原则的基础上,结合昆明集装箱中心站的箱场、道路铺面设计,分析论述了联锁块铺面和铣削型钢纤维混凝土铺面的结构、设计指标和设计流程。并指出铁路集装箱站箱场、道路铺面设计应注意的问题。     

编组站站调IDSSG

利用计算机编制编组站站调阶段计划,应首先建立编组站站调智能决策支持系统生成器(IDSSG),根据各编组站的具体情况生成专用的站调智能决策支持系统(IDSS)。结合站调阶段计划的特点,说明编组站站调IDSSG的特性和设计要求,并对系统的构成及各子系统的设计进行论述。     

关于铁路车站纵断面设计

由于车站纵断面与车站功能及规模没有直接联系,设计规范也只有取值范围,大部分设计要么取上限、要么取下限,设计中的问题往往被复杂的车站平面布置所掩盖。只有当车站标高与地面标高相差很大,工程艰巨,或者土石方超出常规的工程量时,才研究纵断面的合理性。实际上,车站纵断面除了从工程量、桥、隧或路基工点分析其合理性以外,更重要的是车站建成后纵断面对日常运营的影响,这是对作业效率更深层次的影响,影响长远且难以更正。对铁路车站纵断面设计进行深入的分析,以利于提高对车站纵断面设计的认识,掌握和处理好关键的问题。     

杭州东站建筑创作

从城市设计的角度出发，通过对杭州东站的设计分析，阐述了大型交通枢纽站设计与城市设计的密切关系。     

关于新时期铁路编组站设计

铁路编组站设计是站场设计的重要内容之一,从编组站的站型、驼峰类型,到自动化管理,正在逐步走向成熟,并形成符合中国国情的自动化编组作业体系。随着路网的建设,有的编组站在路网中的作用逐渐减弱;而有些在路网中起着重要作用的编组站,由于衔接线路的增加,作业量增加幅度较大。随着枢纽客内货外布局的优化,对编组站的站位及规模将会作出新的调整。结合新的发展要求,探讨新时期铁路编组站设计。     

Robust hub network design problem

This paper presents a robust formulation for the uncapacitated single and multiple allocation hub location problem where demand is uncertain and its distribution is not fully specified. The proposed robust model is formulated as a mixed integer nonlinear program and then transformed into a mixed integer conic quadratic program. An efficient linear relaxation strategy is proposed which is found to deliver the optimal solutions for all the cases considered in this paper. Numerical experiments suggest location of more number of hubs when accounting for demand uncertainty using robust optimization compared to the deterministic setting.     

Liner hub-and-spoke shipping network design

This paper proposes a liner hub-and-spoke shipping network design problem by introducing the concept of a main port, as well as some container shipping constraints such as multi-type container shipment and transit time constraints, which are seldom considered in the previous studies. It develops a mixed-integer programming model with nonconvex multi-linear terms for the proposed problem. An efficient genetic algorithm embedded with a multi-stage decomposition approach is developed to solve the model. Numerical experiments are carried out to assess the effectiveness of the proposed model and the efficiency of the proposed algorithm.     

Demand-responsive transit circulator service network design

Commuter rail systems are being introduced into many urban areas as an alternative mode to automobiles for commuting trips. It is anticipated that the shift from the auto mode to rail mode can greatly help alleviate traffic congestion in urban road networks. However, the right-of-way of many existing commuter rail systems is usually not ideally located. Since the locations of rail systems were typically chosen long ago to serve the needs of freight customers, the majority of current commuter rail passengers have to take a non-walkable connecting trip to reach their final destinations after departing the most conveniently located rail stations. To make rail a more viable commuting option and thus more competitive to the auto mode, a bus feeder or circulator system is proposed for transporting passengers from their departing rail stations to final work destinations in a seamless transfer manner. The key research question with operating such a bus circulator system is how to optimally determine a bus route and stopping sequence for each circulating tour by using the real-time demand information. In this paper, we name this joint routing and stopping optimization problem the circulator service network design problem, the objective of which is to minimize the total tour cost incurred to bus passengers and operators with respect to minimizing the walk time of each individual bus passenger. A bi-level nonlinear mixed integer programming model is constructed and a tabu search method with different local search strategies and neighborhood evaluation methods is then developed for tackling the circulator service network design problem.     

Global intermodal liner shipping network design

This paper presents a holistic analysis for the network design problem of the intermodal liner shipping system. Existing methods for liner shipping network design mainly deal with port-to-port demand. However, most of the demand has inland origins and/or destinations. Thus, it is necessary to cope with inland origin–destination (OD) pairs involving a change in transport mode from inland transportation to maritime shipping. A method is first proposed to convert inland OD demand to port-to-port demand. Then, a framework for global intermodal liner shipping network design is proposed. Finally, the proposed methodology is applied to and numerically verified by a large-scale network example.     

Improving the design of urban loading zone systems

Despite the ubiquity of loading zones in most commercially dense streets of medium and large cities, there exists no generally acknowledged procedure to establish their number, location and management system. We propose a methodology divided in two steps, where the first one estimates the required number of loading zones on a given street and the second one locates them taking into account the delivery characteristics of the retail establishments they will be serving. The application of the methodology is tested in four streets in the Spanish city of Seville, following a retailer survey to collect all the relevant data. The results provided by the application in terms of number and location of loading zones are simulated together with other scenarios with different numbers of loading zones, and the outcomes are compared with the existing situation. The new methodology results in an improvement in the level of service provided with a similar – or smaller – number of loading zones, but most importantly causes a significant reduction in the distances between loading zone parking spaces and final destinations.     

Hub network design problems with profits

This paper presents a class of hub network design problems with profit-oriented objectives, which extend several families of classical hub location problems. Potential applications arise in the design of air and ground transportation networks. These problems include decisions on the origin/destination nodes that will be served as well as the activation of different types of edges, and consider the simultaneous optimization of the collected profit, setup cost of the hub network and transportation cost. Alternative models and integer programming formulations are proposed and analyzed. Results from computational experiments show the complexity of such models and highlight their superiority for decision-making.