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The Economy of Medieval Hungary is the first concise, English-language volume about the economic life of medieval Hungary. It is a product of the cooperation of specialists representing various disciplines of medieval studies, including archaeologists, archaeozoologists, specialists in medieval demography, historical hydrologists, climate and environmental historians, as well as archivists and church historians. The twenty-five chapters of the book focus on structures of medieval economy, different means and ways of human-nature interactions in production, and offer an overview of the different spheres of economic life, with a particular emphasis on taxation, income and commercial activity. Thanks to its interdisciplinary character, this volume is a basic handbook for the history of economy, production and material culture. Contributors are Krisztina Arany, László Bartosiewicz, Zoltán Batizi, Anna Zsófia Biller, Péter Csippán, László Daróczi-Szabó, Márta Daróczi-Szabó, István Draskóczy, István Feld, László Ferenczi, Erika Gál, Márton Gyöngyössy, István Kenyeres, István Kováts, András Kubinyi, Kyra Lyublyanovics, Árpád Nógrády, Éva Ágnes Nyerges, István Petrovics, Zsolt Pinke, Beatrix F. Romhányi, Katalin Szende, László Szende, Magdolna Szilágyi, Csaba Tóth, and Boglárka Weisz.
The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
The Incas is a captivating exploration of one of the greatest civilizations ever seen. Seamlessly drawing on history, archaeology, and ethnography, this thoroughly updated new edition integrates advances made in hundreds of new studies conducted over the last decade. • Written by one of the world’s leading experts on Inca civilization • Covers Inca history, politics, economy, ideology, society, and military organization • Explores advances in research that include pre-imperial Inca society; the royal capital of Cuzco; the sacred landscape; royal estates; Machu Picchu; provincial relations; the khipu information-recording technology; languages, time frames, gender relations, effects on human biology, and daily life • Explicitly examines how the Inca world view and philosophy affected the character of the empire • Illustrated with over 90 maps, figures, and photographs
This compelling collection of essays explores the Qhapaq nan (or Great Inca Road), an extensive network of trails reaching modern-day Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. These roads and the accompanying agricultural terraces and structures that have survived for more than six centuries are a testament to the advanced engineering and construction skills of the Inca people. The Qhapaq nan also spurred an important process of ecological and community integration across the Andean region. This book, the companion volume to a National Museum of the American Indian exhibition of the same name, features essays on six main themes: the ancestors of the Inca, Cusco as the center of the empire, road engineering, road transportation and integration, the road in the Colonial era, and the road today. Beautifully designed and featuring more than 225 full-color illustrations, The Great Inka Road is a fascinating look at this enduring symbol of the Andean peoples' strength and adaptability.
A renowned historian and engineer explores the past, present, and future of America's crumbling infrastructure. Acclaimed engineer and historian Henry Petroski explores our core infrastructure from both historical and contemporary perspectives, explaining how essential their maintenance is to America's economic health. Petroski reveals the genesis of the many parts of America's highway system--our interstate numbering system, the centerline that divides roads, and such taken-for-granted objects as guardrails, stop signs, and traffic lights--all crucial to our national and local infrastructure. A compelling work of history, The Road Taken is also an urgent clarion call aimed at American citizens, politicians, and anyone with a vested interest in our economic well-being. Physical infrastructure in the United States is crumbling, and Petroski reveals the complex and challenging interplay between government and industry inherent in major infrastructure improvement. The road we take in the next decade toward rebuilding our aging infrastructure will in large part determine our future national prosperity.
State-of-the-Art Bridge and Highway Rehabilitation and Repair Methods This authoritative volume offers up-to-date guidance on the latest design techniques, repair methods, specialized software, materials, and advanced maintenance procedures for bridges and highway structures. Focusing on both traditional and nontraditional design issues, Bridge and Highway Structure Rehabilitation and Repair clarifies the most recent AASHTO bridge design codes and discusses new analytical and design methodologies, such as the application of load and resistance factor design (LRFD). A wealth of concise explanations, solved examples, and in-depth case studies are included in this comprehensive resource. COVERAGE INCLUDES: Diagnostic design and selective reconstruction Bridge failure studies and safety engineering Analytical approach to fracture and failure Load and resistance factor rating (LRFR) and redesign Application of LRFD and LRFR methods Inspection and structural health monitoring Bridge widening and replacement strategies Conventional repair methods Advanced repair methods Concrete repair methods Extreme events of flood scour and countermeasures design Guidelines for seismic design and retrofit methods
All phases of road developmentâ€"from construction and use by vehicles to maintenanceâ€"affect physical and chemical soil conditions, water flow, and air and water quality, as well as plants and animals. Roads and traffic can alter wildlife habitat, cause vehicle-related mortality, impede animal migration, and disperse nonnative pest species of plants and animals. Integrating environmental considerations into all phases of transportation is an important, evolving process. The increasing awareness of environmental issues has made road development more complex and controversial. Over the past two decades, the Federal Highway Administration and state transportation agencies have increasingly recognized the importance of the effects of transportation on the natural environment. This report provides guidance on ways to reconcile the different goals of road development and environmental conservation. It identifies the ecological effects of roads that can be evaluated in the planning, design, construction, and maintenance of roads and offers several recommendations to help better understand and manage ecological impacts of paved roads.