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The potential is explored for using composite materials in urban mass transit systems. The emphasis was to identify specific advantages of composite materials in order to determine their actual and potential usage for carbody and guideway structure applications. The literature was reviewed, contacts were made with major domestic system operators, designers, and builders, and an analysis was made of potential composite application to railcar construction. Composites were found to be in use throughout the transit industry, usually in secondary or auxiliary applications such as car interior and nonstructural exterior panels. More recently, considerable activity has been initiated in the area of using composites in the load bearing elements of civil engineering structures such as highway bridges. It is believed that new and improved manufacturing refinements in pultrusion and filament winding will permit the production of beam sections which can be used in guideway structures. The inherent corrosion resistance and low maintenance characteristics of composites should result in lowered maintenance costs over a prolonged life of the structure. Griffin, O. Hayden, Jr. and Guerdal, Zafer and Herakovich, Carl T. Unspecified Center NASA-CR-178401, NAS 1.26:178401 NAG1-673...
TCRP report 155 provides guidelines and descriptions for the design of various common types of light rail transit (LRT) track. The track structure types include ballasted track, direct fixation ("ballastless") track, and embedded track. The report considers the characteristics and interfaces of vehicle wheels and rail, tracks and wheel gauges, rail sections, alignments, speeds, and track moduli. The report includes chapters on vehicles, alignment, track structures, track components, special track work, aerial structures/bridges, corrosion control, noise and vibration, signals, traction power, and the integration of LRT track into urban streets.
Robot Systems for Rail Transit Applications presents the latest advances in robotics and artificial intelligence for railway systems, giving foundational principles and running through special problems in robot systems for rail transit. State-of-the art research in robotics and railway systems is presented alongside a series of real-world examples. Eight chapters give definitions and characteristics of rail transit robot systems, describe assembly and collaborative robots in manufacturing, introduce automated guided vehicles and autonomous rail rapid transit, demonstrate inspection robots, cover trench robots, and explain unmanned aerial vehicles. This book offers an integrated and highly-practical way to approach robotics and artificial intelligence in rail-transit. - Introduces robot and artificial intelligence (AI) systems for rail transit applications - Presents research alongside step-by-step coverage of real-world cases - Gives the theoretical foundations underlying practical application - Offers solutions for high-speed railways from the latest work in robotics - Shows how robotics and AI systems afford new and efficient methods in rail transit
This book provides a macro-level understanding of transportation as an industry, through the lens of all the stakeholders that make up the ecosystem. It aids understanding about the transportation ecosystem, its components, challenges, contribution to economic growth, and the interplay between the stakeholders that govern the system. The contents also examine the background and history of transportation, emphasizing the fundamental role and importance the industry plays in companies, society, and the environment in which transportation service is provided. The book also provides an overview of carrier operations, management, technology, and the strategic principles for the successful management of different modes of transportation. This book is of interest to those working in academia, industry, and policy in the areas of transportation.
This report examines materials research programs across all operating Administrations within the U.S. Department of Transportation. It is the department's first report on ongoing and planned research and technology efforts in advanced materials. The report was published in support of the Administration's initiative to establish an integrated program of research designed to enhance the performance and longevity of the Nation's transportation infrastructure. It is intended to provide the department's customers with a consolidated report of materials-related research projects. The report highlights opportunities for joint research and near-term applications of advanced materials technologies.
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