The Multi-Agent Transport Simulation MATSim

The Multi-Agent Transport Simulation MATSim PDF Author: Andreas Horni
Publisher: Ubiquity Press
ISBN: 190918876X
Category : Technology & Engineering
Languages : en
Pages : 620

Book Description
The MATSim (Multi-Agent Transport Simulation) software project was started around 2006 with the goal of generating traffic and congestion patterns by following individual synthetic travelers through their daily or weekly activity programme. It has since then evolved from a collection of stand-alone C++ programs to an integrated Java-based framework which is publicly hosted, open-source available, automatically regression tested. It is currently used by about 40 groups throughout the world. This book takes stock of the current status. The first part of the book gives an introduction to the most important concepts, with the intention of enabling a potential user to set up and run basic simulations. The second part of the book describes how the basic functionality can be extended, for example by adding schedule-based public transit, electric or autonomous cars, paratransit, or within-day replanning. For each extension, the text provides pointers to the additional documentation and to the code base. It is also discussed how people with appropriate Java programming skills can write their own extensions, and plug them into the MATSim core. The project has started from the basic idea that traffic is a consequence of human behavior, and thus humans and their behavior should be the starting point of all modelling, and with the intuition that when simulations with 100 million particles are possible in computational physics, then behavior-oriented simulations with 10 million travelers should be possible in travel behavior research. The initial implementations thus combined concepts from computational physics and complex adaptive systems with concepts from travel behavior research. The third part of the book looks at theoretical concepts that are able to describe important aspects of the simulation system; for example, under certain conditions the code becomes a Monte Carlo engine sampling from a discrete choice model. Another important aspect is the interpretation of the MATSim score as utility in the microeconomic sense, opening up a connection to benefit cost analysis. Finally, the book collects use cases as they have been undertaken with MATSim. All current users of MATSim were invited to submit their work, and many followed with sometimes crisp and short and sometimes longer contributions, always with pointers to additional references. We hope that the book will become an invitation to explore, to build and to extend agent-based modeling of travel behavior from the stable and well tested core of MATSim documented here.

Human Transit

Human Transit PDF Author: Jarrett Walker
Publisher: Island Press
ISBN: 1610911741
Category : Transportation
Languages : en
Pages : 256

Book Description
Public transit is a powerful tool for addressing a huge range of urban problems, including traffic congestion and economic development as well as climate change. But while many people support transit in the abstract, it's often hard to channel that support into good transit investments. Part of the problem is that transit debates attract many kinds of experts, who often talk past each other. Ordinary people listen to a little of this and decide that transit is impossible to figure out. Jarrett Walker believes that transit can be simple, if we focus first on the underlying geometry that all transit technologies share. In Human Transit, Walker supplies the basic tools, the critical questions, and the means to make smarter decisions about designing and implementing transit services. Human Transit explains the fundamental geometry of transit that shapes successful systems; the process for fitting technology to a particular community; and the local choices that lead to transit-friendly development. Whether you are in the field or simply a concerned citizen, here is an accessible guide to achieving successful public transit that will enrich any community.

Regulation of Tissue Oxygenation, Second Edition

Regulation of Tissue Oxygenation, Second Edition PDF Author: Roland N. Pittman
Publisher: Biota Publishing
ISBN: 1615047212
Category : Medical
Languages : en
Pages : 117

Book Description
This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.

Humans Are Underrated

Humans Are Underrated PDF Author: Geoff Colvin
Publisher: Penguin
ISBN: 0698153650
Category : Business & Economics
Languages : en
Pages : 258

Book Description
As technology races ahead, what will people do better than computers? What hope will there be for us when computers can drive cars better than humans, predict Supreme Court decisions better than legal experts, identify faces, scurry helpfully around offices and factories, even perform some surgeries, all faster, more reliably, and less expensively than people? It’s easy to imagine a nightmare scenario in which computers simply take over most of the tasks that people now get paid to do. While we’ll still need high-level decision makers and computer developers, those tasks won’t keep most working-age people employed or allow their living standard to rise. The unavoidable question—will millions of people lose out, unable to best the machine?—is increasingly dominating business, education, economics, and policy. The bestselling author of Talent Is Overrated explains how the skills the economy values are changing in historic ways. The abilities that will prove most essential to our success are no longer the technical, classroom-taught left-brain skills that economic advances have demanded from workers in the past. Instead, our greatest advantage lies in what we humans are most powerfully driven to do for and with one another, arising from our deepest, most essentially human abilities—empathy, creativity, social sensitivity, storytelling, humor, building relationships, and expressing ourselves with greater power than logic can ever achieve. This is how we create durable value that is not easily replicated by technology—because we’re hardwired to want it from humans. These high-value skills create tremendous competitive advantage—more devoted customers, stronger cultures, breakthrough ideas, and more effective teams. And while many of us regard these abilities as innate traits—“he’s a real people person,” “she’s naturally creative”—it turns out they can all be developed. They’re already being developed in a range of far-sighted organizations, such as: • the Cleveland Clinic, which emphasizes empathy training of doctors and all employees to improve patient outcomes and lower medical costs; • the U.S. Army, which has revolutionized its training to focus on human interaction, leading to stronger teams and greater success in real-world missions; • Stanford Business School, which has overhauled its curriculum to teach interpersonal skills through human-to-human experiences. As technology advances, we shouldn’t focus on beating computers at what they do—we’ll lose that contest. Instead, we must develop our most essential human abilities and teach our kids to value not just technology but also the richness of interpersonal experience. They will be the most valuable people in our world because of it. Colvin proves that to a far greater degree than most of us ever imagined, we already have what it takes to be great.

Chemical Fate and Transport in the Environment

Chemical Fate and Transport in the Environment PDF Author: Harold F. Hemond
Publisher: Elsevier
ISBN: 0123982669
Category : Science
Languages : en
Pages : 488

Book Description
The third edition of Chemical Fate and Transport in the Environment—winner of a 2015 Textbook Excellence Award (Texty) from The Text and Academic Authors Association—explains the fundamental principles of mass transport, chemical partitioning, and chemical/biological transformations in surface waters, in soil and groundwater, and in air. Each of these three major environmental media is introduced by descriptive overviews, followed by a presentation of the controlling physical, chemical, and biological processes. The text emphasizes intuitively based mathematical models for chemical transport and transformations in the environment, and serves both as a textbook for senior undergraduate and graduate courses in environmental science and engineering, and as a standard reference for environmental practitioners. Winner of a 2015 Texty Award from the Text and Academic Authors Association Includes many worked examples as well as extensive exercises at the end of each chapter Illustrates the interconnections and similarities among environmental media through its coverage of surface waters, the subsurface, and the atmosphere Written and organized concisely to map to a single-semester course Discusses and builds upon fundamental concepts, ensuring that the material is accessible to readers who do not have an extensive background in environmental science

Transportation Then and Now

Transportation Then and Now PDF Author: Robin Nelson
Publisher: Lerner Publications ™
ISBN: 154154076X
Category : Juvenile Nonfiction
Languages : en
Pages : 25

Book Description
See how transportation has changed over the years Transportation carries people from one place to another, but it has changed over time. Long ago airplanes began to fly in the sky, now airplanes fly very high and far. This book looks at how transportation has changed over the years Historical and modern-day photographs interspersed throughout these books clearly illustrate how aspects of daily life change over time, while simple text shows readers how to compare and contrast ideas. Timelines in the back of each book give readers perspective by listing key inventions and developments that have modernized our lives.

Three Revolutions

Three Revolutions PDF Author: Daniel Sperling
Publisher: Island Press
ISBN: 161091905X
Category : Architecture
Languages : en
Pages : 253

Book Description
Front Cover -- About Island Press -- Subscribe -- Title Page -- Copyright Page -- Contents -- Preface -- Acknowledgments -- 1. Will the Transportation Revolutions Improve Our Lives-- or Make Them Worse? -- 2. Electric Vehicles: Approaching the Tipping Point -- 3. Shared Mobility: The Potential of Ridehailing and Pooling -- 4. Vehicle Automation: Our Best Shot at a Transportation Do-Over? -- 5. Upgrading Transit for the Twenty-First Century -- 6. Bridging the Gap between Mobility Haves and Have-Nots -- 7. Remaking the Auto Industry -- 8. The Dark Horse: Will China Win the Electric, Automated, Shared Mobility Race? -- Epilogue -- Notes -- About the Contributors -- Index -- IP Board of Directors

Guidelines for the Humane Transportation of Research Animals

Guidelines for the Humane Transportation of Research Animals PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 030916477X
Category : Science
Languages : en
Pages : 164

Book Description
Arranging the transportation of animals at research facilities is often an ordeal. There is a confusing patchwork of local, national, and international regulations; a perceived lack of high-quality shipping services; a dearth of science-based good practices; and a lack of biosafety standards. It's a challenge â€"and an impediment to biomedical research. Guidelines for the Humane Transportation of Research Animals identifies the current problems encountered in the transportation of research animals and offers recommendations aimed at local and federal officials to rectify these problems. This book also includes a set of good practices based on the extensive body of literature on transportation of agricultural animals, universal concepts of physiology, and a scientific understanding of species-specific needs and differences. Good practices were developed by the committee to address thermal environment, space requirements, food and water requirements, social interaction, monitoring of transportation, emergency procedures, personnel training, and biosecurity. Guidelines for the Humane Transportation of Research Animals is an essential guide for all researchers, animal care technicians, facilities managers, administrators, and animal care and use committees at research institutions.

Transport for Humans: Are We Nearly

Transport for Humans: Are We Nearly PDF Author: Pete Dyson
Publisher: London School of Economics and Political Science
ISBN: 9781913019358
Category : Business & Economics
Languages : en
Pages : 288

Book Description
Engineers plan transport systems, people use them. But the ways in which an engineer measures success - speed, journey time, efficiency - are often not the way that passengers think about a good trip. We are not cargo. We choose how and when to travel, influenced not only by speed and time but by habit, status, comfort, variety - and many other factors that engineering equations don't capture at all. As we near the practical, physical limits of speed, capacity and punctuality, the greatest hope for a brighter future lies in adapting transport to more human wants and needs. Behavioural science has immense potential to improve the design of roads, railways, planes and pavements - as well as the ways in which we use them - but only when we embrace the messier reality of transport for humans. This is the moment. Climate change, the coronavirus pandemic and changing work-life priorities are shaking up long-held assumptions. There is a new way forward. This book maps out how to design transport for humans.

The Geography of Transport Systems

The Geography of Transport Systems PDF Author: Jean-Paul Rodrigue
Publisher: Routledge
ISBN: 1136777326
Category : Science
Languages : en
Pages : 432

Book Description
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.
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