3,274 research outputs found

    The philosophy and practice of Taktfahrplan: a case-study of the East Coast Main Line.

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    Executive Summary This Working Paper has three purposes, represented by three Parts: - to explain the principles of the Taktfahrplan approach to railway timetabling; - to summarise the implications of the background research on the structure of the network; and - to describe the exercise of constructing a Taktfahrplan for the East Coast Main Line that formed the case-study of the potential benefits of such a scheme compared with the existing timetable. In Part I the broad principles and objectives are first outlined, and the advantages and disadvantages discussed [§ 1.1,1.2]. A Taktfahrplan is based on standard hours and the careful, network-wide coordination of sewices. It is recognised that ultimately the choice between this and conventional timetabling methods must depend on an evaluation of the loss of present flexibility to adjust to time-specific market demands against the gains from enhanced connectivity and from the fact of regularity. Issues concerning resources and the management of peak periods are also explained. Terminology is then dealt with because words and phrases are being used with imprecise and various meanings [§1.3]. There follows a detailed account of the arithmetic rules through which the ideal relationships between train (and bus) sewices can be attained, together with an explanation of the measures that can be taken to make the best compromises in the face of the characteristics of the real network - or to adjust it over time [§ 1.4]. In Part 2 the research to highlight features of the underlying demand for travel is described. This is not a necessary component of strategic timetable planning, but it is argued that it is desirable in order both to break free from the historical baggage and to seize the business, environmental and social-policy opportunities that a 'clean- sheet' timetable would present [§2.1]. The provisional findings from this work (it was left incomplete for reasons that are explained) are then deployed to form the skeleton of a national network connecting 100 important centres with 158 links. This is followed by an analysis of the very variable standards of the rail timetable on those links and of the road competition and by an account of some first thoughts as to how a full-scale Taktfahrplan might start to be developed on this network [§2.2]. This emphasises the inter-relationships between sewices and the inescapable consequences for pathing trains, once it is accepted that sensible spacing of services and striving for good connectivity are more important than optimising routes on a self-contained basis. It was thought appropriate to include a summary of the findings regarding the low-density end of the current rail system in order to indicate the issues that Taktfahrplan might raise in this respect [§2.3]. The East Coast case-study is presented in Part 3. Some technical matters are explained first, including the key point that the exercise used the Viriato timetabling software employed by the Swiss Federal Railways (and many other systems) to construct Taktfahrpliine [§3.1]. Successive sub-parts then describe groups of services: long-distance [§3.2], services within Scotland [§3.3], services in North East England [§3.4], the trans-Pennine network [§3.5] and some of the Yorkshire services [§3.6]

    Chicago Recovery Partnership Evaluation of the American Recovery and Reinvestment Act

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    From 2009-2011, the City of Chicago and Cook County received a total of 2.35billioninfundingprovidedbytheAmericanRecoveryandReinvestmentAct[ARRA].Thestimulusmoneywasallocatedtosevenareas:education,basicneeds,transportationandinfrastructure,housingandenergy,publicsafety,broadbandandworkforcedevelopment.TheChicagoRecoveryPartnershipEvaluationofARRAanalyzestheimpactofthestimulusspendingusingacostbenefitanalysisframework.Thisreportevaluated2.35 billion in funding provided by the American Recovery and Reinvestment Act [ARRA]. The stimulus money was allocated to seven areas: education, basic needs, transportation and infrastructure, housing and energy, public safety, broadband and workforce development. The Chicago Recovery Partnership Evaluation of ARRA analyzes the impact of the stimulus spending using a costbenefit analysis framework. This report evaluated 1.09 billion of total spending in Chicago and Cook County, resulting in net benefits ranging from -173.9to173.9 to 2,740.2 million. The wide range in net benefits is attributed largely to education, which received over half of ARRA funding

    Bus Rapid Transit: A Handbook for Partners, MTI Report 06-02

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    In April 2005, the Caltrans Division of Research and Innovation (DRI) asked MTI to assist with the research for and publication of a guidebook for use by Caltrans employees who work with local transit agencies and jurisdictions in planning, designing, and operating Bus Rapid Transit (BRT) systems that involve state facilities. The guidebook was also to assist to transit operators, local governments, community residents, and other stakeholders dealing with the development of BRT systems. Several areas in the state have experienced such projects ( San Diego , Los Angeles , San Francisco , and Alameda County ) and DRI wished to use that experience to guide future efforts and identify needed changes in statutes, policies, and other state concerns. Caltrans convened a Task Team from the Divisions of Research and Innovation, Mass Transportation, and Operations, together with stakeholders representing many of those involved with the BRT activities around the state. Prior to MTI’s involvement, this group produced a white paper on the topic, a series of questions, and an outline of the guidebook that MTI was to write. The MTI team conducted case studies of the major efforts in California, along with less developed studies of some of the other BRT programs under development or in early implementation phases around the state. The purpose was to clarify those issues that need to be addressed in the guidebook, as well as to compile information that would identify items needing legislative or regulatory action and items that Caltrans will need to address through district directives or other internal measures. A literature scan was used to develop a bibliography for future reference. The MTI team also developed a draft Caltrans director’s policy document, which provides the basis for Caltrans’ actions. This ultimately developed to be a project within a project. MTI submitted a draft document to Caltrans as a final product from the Institute. Task team members and Caltrans staff and leadership provided extensive review of the draft Bus Rapid Transit: A Handbook for Partners. Caltrans adopted a new Director’s Policy and published the document, BRT Caltrans. The MTI “wraparound” report presented below discusses in more detail the process that was followed to produce the draft report. The process was in many ways as much a project as the report itself

    Case studies: results and synthesis projet 7FP CLOSER (Connecting LOng and Short-distance networks for Efficient Transport) Rapport de recherche Deliverable 5.2 project européen CLOSER.

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    The CLOSER project has been set to analyse the interfaces and interconnectionsbetween long distance transport networks and local/regional transport networks of allmodes. The project is funded within the Seventh Framework Programme of theEuropean Commission, under the topic TPT-2008.0.0.13 “New mobility/organisationalschemes: interconnection between short and long-distance transport networks”.The objective of WP5 of CLOSER is to accomplish in-depth case studies to deepenand validate the understanding of results obtained in Work packages 2, 3 and 4. Thiswill be achieved by:- Developing a joint assessment and evaluation framework for the case studies,incorporating knowledge that has been obtained in WP 2, WP 3 and WP 4- Carrying out the case studies- Synthesising the results of the case studies in order to give inputs for thedevelopment of recommendations in WP 6.The deliverable at hand summarises the seven case studies that have been conductedin the CLOSER project: Leipzig-Halle airport (Germany) Armentiéres station (France) Oslo bus terminal Vaterland (Norway) Port of Helsinki (Finland) Thessaloniki port (Greece) Constantza port (Romania) Vilnius Airport (Lithuania

    Integrated Gate and Bus Assignment at Amsterdam Airport Schiphol

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    Abstract. At an airport a series of assignment problems need to be solved before aircraft can arrive and depart and passengers can embark and disembark. A lot of different parties are involved with this, each of which having to plan their own schedule. Two of the assignment problems that the ’Regie ’ at Amsterdam Airport Schiphol (AAS) is responsible for, are the gate assignment problem (i.e. where to place which aircraft) and the bus assignment problem (i.e. which bus will transport which passen-gers to or from the aircraft). Currently these two problems are solved in a sequential fashion, the output of the gate assignment problem is used as input for the bus assignment problem. We look at integrating these two sequential problems into one larger problem that considers both prob-lems at the same time. This creates the possibility of using information regarding the bus assignment problem while solving the gate assignment problem. We developed a column generation algorithm for this problem and have implemented a prototype. To make the algorithm efficient we used a special technique called stabilized column generation and also col-umn deletion. Computational experiments with real-life data from AAS indicate that our algorithm is able to compute a planning for one day at Schiphol in a reasonable time

    Planning for Complementarity: An Examination of the Roll and Opportunities of First-Tier and Second-Tier Cities Along the High-Speed Rail Network in California, Research Report 11-17

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    The coming of California High-Speed Rail (HSR) offers opportunities for positive urban transformations in both first-tier and second-tier cities. The research in this report explores the different but complementary roles that first-tier and second-tier cities along the HSR network can play in making California more sustainable and less dependent on fossil fuels while reducing mobile sources of greenhouse gas emissions and congestion at airports and on the state’s roadways. Drawing from case studies of cities in Northern and Southern California, the study develops recommendations for the planning, design, and programming of areas around California stations for the formation of transit-supportive density nodes

    RCS Rochester Central Station: A Landmark Transit Station for Rochester New York

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    The City of Rochester and the State of New York are exploring options for replacing the existing Rochester train station building with a modern new building that will improve access to the larger rail network, including a new high-speed rail, as well as improving logistics and usability for all types of building occupants. Although there is currently a design proposal completed by a local architecture firm contracted by the city, the design solution proposed in this thesis project will not adhere to the project description created by the City of Rochester. Instead, it will use the basic premise of a new station in the same location as the existing station and explore how an urban transit station can provoke change and development on the border of the regenerating downtown area. Using the principles of transit-oriented development (TOD) in its design, the station will serve as the hub of its neighborhood and in some ways the city. According to the values of Rochestarians, TOD, station design, and sustainability, the design will be iconic to Rochester, a model for efficient and comfortable transit stations, and a leader in sustainable design
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