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Book Examining the Efficiency of Multimodal Transportation Systems  a Systems Dynamics Approach

Download or read book Examining the Efficiency of Multimodal Transportation Systems a Systems Dynamics Approach written by Lizzette Perez-Lespier and published by . This book was released on 2013 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: "With international trade becoming a big part of the world's economic activity, the demand for good freight transportation systems has grown substantially. The appropriate use of transportation is an integral part of the supply chain's effectiveness. Therefore, the continuous economic globalization, the growing demand for speed-to-market product delivery, and the need to manage global supply chains more effectively, has led to the sustained increase in demand towards multimodal transportation systems (MTS). MTS play an essential role in corporations competing in global markets in the 21st century. In transportation, the effectiveness and efficiency of the whole system depends upon the interconnectivity of its elements. Because disruptions in the supply chain are costly, this research will look at improving the efficiency of MTS by looking at disruptions that have a negative impact on the elements that make up the system. Although past research classifies disruptions in MTS as: congestion, demand fluctuations, time delays, capacity limits, scheduling and, connectivity between the different modes, limited research address the relationship between these failures and the system. This research presents a Systems Dynamics (SD) approach to model MTS, which will let us iterate and mitigate a system to be able to forecast scenarios and meaningful hypothesis of a system's behavior over time. The SD model will aid to identify and understand those major elements and disruptions that altogether impact the efficiency of the MTS. The model will help determine how the disruptive factors of the supply chain are related to the efficiency of the system and will suggest decision-making strategies that will improve MTS performance over time being able to enhance customer satisfaction"--Abstract, page iii.

Book Performance Measures  Data Acquisition and Performance Evaluation Under the National Transportation System

Download or read book Performance Measures Data Acquisition and Performance Evaluation Under the National Transportation System written by Ned Codd and published by . This book was released on 1996 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Transportation System (NTS), an outgrowth of the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA), is proposed in this research as an analytical tool to guide national transportation policy making. The NTS must be based upon measures of transportation performance that are intermodal, user oriented, and suitable for tracking the environmental, social, and economic outcomes of transportation system use. A set of such performance measures is proposed, and implications of the measures for various modes are discussed. This proposal and discussion of performance measures is the critical component of this report. A major concern in the implementation of these performance measures is the data that supports them. A great deal of data is required to track the performance of the basic components of NTS analysis: major transportation facilities and regional transportation systems. Appropriate data sources for the NTS performance measures are identified, a sample of demonstration data is applied to the performance measures, and problems with data acquisition and application are discussed. A general framework for using the performance measures to achieve the NTS policy objective is proposed, and the implications of geographic information systems (GIS) and other technologies are discussed. Conclusions and recommendations from this research are presented.

Book Measures of Effectiveness for Major Investment Studies

Download or read book Measures of Effectiveness for Major Investment Studies written by Shawn Turner and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report examines measures of effectiveness that can be used to compare the benefits and impacts of transportation improvements for a major investment study. A literature review was used to gather information about transportation performance measures and the social, economic and environmental effects of transportation. All metropolitan planning organizations within the state of Texas were surveyed to determine the state-of-the- practice for major investment studies within the state. A list of candidate measures of effectiveness for major investment studies was developed, and various judging criteria were used to qualitatively evaluate the measures. Preferred measures of effectiveness were identified that quantify the following benefits or impacts of transportation improvements: transportation performance, financial/economic performance, social impacts, land use/economic development impacts, and environmental impacts. Preferred transportation performance measures consisted mainly of person movement and travel time-based measures. Financial/economic performance measures centered around the cost effectiveness (benefit-to-cost ratio) and the financial feasibility, and considered the full costs (including externalities, or cost not borne by motorists) of transportation. Social, land use/economic development, and environmental impacts were identified, and coincided with those concerns most often expressed by citizen or community advocacy groups. Findings from the study illustrated the importance of matching the appropriate evaluation measures to the goals and objectives set forth early in the major investment study process.

Book Economic Analysis Primer

Download or read book Economic Analysis Primer written by and published by . This book was released on 2003 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This primer provides a foundation for understanding the role of economic analysis in highway decision making. It is oriented toward state and local officials who have responsibility for assuring that limited resources get targeted to their best uses and who must publicly account for their decisions. Economic analysis is presented as an integral component of a comprehensive infrastructure management methodology that takes a long-term view of infrastructure performance and cost. The primer encompasses a full range of economic issues, including economic fundamentals, life-cycle cost analysis, benefit-cost analysis, forecasting traffic for benefit calculations, risk analysis and economic impact analysis.

Book Transportation Systems Evaluation

Download or read book Transportation Systems Evaluation written by Peter R. Stopher and published by Free Press. This book was released on 1976 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Alternative Multimodal Passenger Transportation Systems

Download or read book Alternative Multimodal Passenger Transportation Systems written by Frederick F. Frye and published by Highway Research Board. This book was released on 1973 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this project were to review currently used methods of evaluating the economics of alternative transportation systems, develop a framework within which to evaluate the economics of alternative multimodal metropolitan transportation systems, and develop quantification methods for such factors as accessibility and capacity that relate them to all modes. The research was to include sensitivity analysis to identify those aspects of a modal investment policy that have major impacts on the output variables and therefore should be included in the results presented to transportation decision makers.

Book Measuring the Distributional Impacts of Multimodal Transportation Systems Across Different Income Neighborhoods

Download or read book Measuring the Distributional Impacts of Multimodal Transportation Systems Across Different Income Neighborhoods written by Catherine Laverne Ross and published by . This book was released on 1982 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transportation Decision Making

Download or read book Transportation Decision Making written by Kumares C. Sinha and published by John Wiley & Sons. This book was released on 2011-09-09 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: This pioneering text provides a holistic approach to decisionmaking in transportation project development and programming, whichcan help transportation professionals to optimize their investmentchoices. The authors present a proven set of methodologies forevaluating transportation projects that ensures that all costs andimpacts are taken into consideration. The text's logical organization gets readers started with asolid foundation in basic principles and then progressively buildson that foundation. Topics covered include: Developing performance measures for evaluation, estimatingtravel demand, and costing transportation projects Performing an economic efficiency evaluation that accounts forsuch factors as travel time, safety, and vehicle operatingcosts Evaluating a project's impact on economic development and landuse as well as its impact on society and culture Assessing a project's environmental impact, including airquality, noise, ecology, water resources, and aesthetics Evaluating alternative projects on the basis of multipleperformance criteria Programming transportation investments so that resources can beoptimally allocated to meet facility-specific and system-widegoals Each chapter begins with basic definitions and concepts followedby a methodology for impact assessment. Relevant legislation isdiscussed and available software for performing evaluations ispresented. At the end of each chapter, readers are providedresources for detailed investigation of particular topics. Theseinclude Internet sites and publications of international anddomestic agencies and research institutions. The authors alsoprovide a companion Web site that offers updates, data foranalysis, and case histories of project evaluation and decisionmaking. Given that billions of dollars are spent each year ontransportation systems in the United States alone, and that thereis a need for thorough and rational evaluation and decision makingfor cost-effective system preservation and improvement, this textshould be on the desks of all transportation planners, engineers,and educators. With exercises in every chapter, this text is anideal coursebook for the subject of transportation systems analysisand evaluation.

Book Multimodal Transport Systems

Download or read book Multimodal Transport Systems written by Slim Hammadi and published by John Wiley & Sons. This book was released on 2013-12-11 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use and management of multimodal transport systems, including car-pooling and goods transportation, have become extremely complex, due to their large size (sometimes several thousand variables), the nature of their dynamic relationships as well as the many constraints to which they are subjected. The managers of these systems must ensure that the system works as efficiently as possible by managing the various causes of malfunction of the transport system (vehicle breakdowns, road obstructions, accidents, etc.). The detection and resolution of conflicts, which are particularly complex and must be dealt with in real time, are currently processed manually by operators. However, the experience and abilities of these operators are no longer sufficient when faced with the complexity of the problems to be solved. It is thus necessary to provide them with an interactive tool to help with the management of disturbances, enabling them to identify the different disturbances, to characterize and prioritize these disturbances, to process them by taking into account their specifics and to evaluate the impact of the decisions in real time. Each chapter of this book can be broken down into an approach for solving a transport problem in 3 stages, i.e. modeling the problem, creating optimization algorithms and validating the solutions. The management of a transport system calls for knowledge of a variety of theories (problem modeling tools, multi-objective problem classification, optimization algorithms, etc.). The different constraints increase its complexity drastically and thus require a model that represents as far as possible all the components of a problem in order to better identify it and propose corresponding solutions. These solutions are then evaluated according to the criteria of the transport providers as well as those of the city transport authorities. This book consists of a state of the art on innovative transport systems as well as the possibility of coordinating with the current public transport system and the authors clearly illustrate this coordination within the framework of an intelligent transport system. Contents 1. Dynamic Car-pooling, Slim Hammadi and Nawel Zangar. 2. Simulation of Urban Transport Systems, Christian Tahon, Thérèse Bonte and Alain Gibaud. 3. Real-time Fleet Management: Typology and Methods, Frédéric Semet and Gilles Goncalves. 4. Solving the Problem of Dynamic Routes by Particle Swarm, Mostefa Redouane Khouahjia, Laetitia Jourdan and El Ghazali Talbi. 5. Optimization of Traffic at a Railway Junction: Scheduling Approaches Based on Timed Petri Nets, Thomas Bourdeaud’huy and Benoît Trouillet. About the Authors Slim Hammadi is Full Professor at the Ecole Centrale de Lille in France, and Director of the LAGIS Team on Optimization of Logistic systems. He is an IEEE Senior Member and specializes in distributed optimization, multi-agent systems, supply chain management and metaheuristics. Mekki Ksouri is Professor and Head of the Systems Analysis, Conception and Control Laboratory at Tunis El Manar University, National Engineering School of Tunis (ENIT) in Tunisia. He is an IEEE Senior Member and specializes in control systems, nonlinear systems, adaptive control and optimization. The multimodal transport network customers need to be oriented during their travels. A multimodal information system (MIS) can provide customers with a travel support tool, allowing them to express their demands and providing them with the appropriate responses in order to improve their travel conditions. This book develops methodologies in order to realize a MIS tool capable of ensuring the availability of permanent multimodal information for customers before and while traveling, considering passengers mobility.

Book Impact of Transport Infrastructure Investment on Regional Development

Download or read book Impact of Transport Infrastructure Investment on Regional Development written by OECD and published by OECD Publishing. This book was released on 2002-05-23 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes evaluation methods for transport infrastructure investments to ensure that scarce resources are allocated in a way that maximises their net return to society.

Book Access

Download or read book Access written by and published by . This book was released on 2000 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book GAO Documents

    Book Details:
  • Author : United States. General Accounting Office
  • Publisher :
  • Release : 1984
  • ISBN :
  • Pages : 694 pages

Download or read book GAO Documents written by United States. General Accounting Office and published by . This book was released on 1984 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalog of reports, decisions and opinions, testimonies and speeches.

Book The Geography of Transport Systems

Download or read book The Geography of Transport Systems written by Jean-Paul Rodrigue and published by Routledge. This book was released on 2013-07-18 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobility is fundamental to economic and social activities such as commuting, manufacturing, or supplying energy. Each movement has an origin, a potential set of intermediate locations, a destination, and a nature which is linked with geographical attributes. Transport systems composed of infrastructures, modes and terminals are so embedded in the socio-economic life of individuals, institutions and corporations that they are often invisible to the consumer. This is paradoxical as the perceived invisibility of transportation is derived from its efficiency. Understanding how mobility is linked with geography is main the purpose of this book. The third edition of The Geography of Transport Systems has been revised and updated to provide an overview of the spatial aspects of transportation. This text provides greater discussion of security, energy, green logistics, as well as new and updated case studies, a revised content structure, and new figures. Each chapter covers a specific conceptual dimension including networks, modes, terminals, freight transportation, urban transportation and environmental impacts. A final chapter contains core methodologies linked with transport geography such as accessibility, spatial interactions, graph theory and Geographic Information Systems for transportation (GIS-T). This book provides a comprehensive and accessible introduction to the field, with a broad overview of its concepts, methods, and areas of application. The accompanying website for this text contains a useful additional material, including digital maps, PowerPoint slides, databases, and links to further reading and websites. The website can be accessed at: http://people.hofstra.edu/geotrans This text is an essential resource for undergraduates studying transport geography, as well as those interest in economic and urban geography, transport planning and engineering.

Book National Transportation System Performance Measures

Download or read book National Transportation System Performance Measures written by and published by . This book was released on 1996 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Performance Measurement of Transportation Systems

Download or read book Performance Measurement of Transportation Systems written by and published by Transportation Research Board. This book was released on 2013 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each track consisted of a plenary session followed by three concurrent breakout sessions. These proceedings follow the conference format, with the plenary sessions and the breakout sessions for each of the five tracks presented in chronological order. The breakout sessions and the closing session gave participants the opportunity to provide ideas and suggestions on further research, technology transfer, and training. Research topics identified for potential consideration are listed in the section on concluding remarks. The conference also featured an interactive poster session. Summaries provided by the poster authors are presented in Appendix A. The conference attracted 130 participants from Canada, Germany, Japan, the Netherlands, South Africa, and the United States, and featured transportation specialists who offered real-world expertise on the application of performance metrics and case studies.

Book ITF Roundtable Reports Quantifying the Socio economic Benefits of Transport

Download or read book ITF Roundtable Reports Quantifying the Socio economic Benefits of Transport written by International Transport Forum and published by OECD Publishing. This book was released on 2017-01-25 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report sets out several of the recent advances, and suggests the most promising approaches, to the quantification and valuation of some of the wider economic benefits that flow from transport-related development. Economic appraisal can offer decision-makers important insights into the ...