This study argues that U.S. shipping policy should be examined in the light of U.S. foreign economic policy. It concentrates on assistance of ship construction, operation subsidies, coargo preferences, cabotage restrictions, and control of competition.

First published in 2009 as a volume in the NASA "Monograph in Aerospace History" series. This study contains photographs and illustrations.

Prepare for take-off! Board one of the biggest passenger planes in the world and visit the captain's cockpit. Hover above ground in a helicopter, soar through the sky in a glider, rise above the clouds in a hot air balloon, and shoot into space in a rocket. Children will learn about different types of aircraft - past and present - fuelling their curiosity about how these mighty machines work. This title is part of the My First Discovery paperback series - a unique collection of beautifully illustrated information books for children aged 4 to 7, with simple language to aid learning and realistic artwork to inspire young minds. There are 8 transparent overlay pages, which reveal hidden surprises and make the pages come alive. With free access to a brand new audio app, children can listen and read along at their own pace, page by page.

Full color, richly illustrated book. This manual aims to gather and disseminate the modern OSD technology based on worldwide practice. Emphasis is now placed on the fact that the design of these structures is generally controlled by fatigue limit states. Details necessary to make these structures work require advanced fatigue evaluation techniques that must rest on accurate stress range calculations, which is possible with the use of the Finite Element Analysis (FEA) and/or prototype testing. The fatigue testing database has grown considerably over the last few decades, which has provided the necessary data for proper evaluation and detailing for fatigue resistance.

First published in 1998 as a volume in the NASA "Monograph in Aerospace History" series. This study contains photographs and illustrations.

From case studies of eleven highway systems in underdeveloped countries, the authors suggest a theory of transport investment and development.

First published in 2003 as a volume in the NASA "Monograph in Aerospace History" series. This study contains photographs and illustrations.

Full color, richly illustrated book. The purpose of HDS 7, Hydraulic Design of Safe Bridges, is to provide technical information and guidance on the hydraulic design of bridges. HDS 7 replaces the HDS 1 manual "Hydraulics of Bridge Waterways" (FHWA 1978) for guidance of bridge hydraulic analyses. Bridges should be designed as safely as possible while optimizing costs and limiting impacts to property and the environment. Many significant aspects of bridge hydraulic design are discussed. These include regulatory topics, specific approaches for bridge hydraulic modeling, hydraulic model selection, bridge design impacts on scour and stream instability, and sediment transport.

The Shelf2Life Trains & Railroads Collection provides a unique opportunity for researchers and railroad enthusiasts to easily access and explore pre-1923 titles focusing on the history, culture and experience of railroading. From the revolution of the ste

First published in 2007 as a volume in the NASA "Monograph in Aerospace History" series. This study contains photographs and illustrations.

First published in 2001 as a volume in the NASA "Monograph in Aerospace History" series. This study contains photographs and illustrations.

With the recent advancements and implementations of technology within the global community, various regions of the world have begun to transform. The idea of smart transportation and mobility is a specific field that has been implemented among countless areas around the world that are focused on intelligent and efficient environments. Despite its strong influence and potential, sustainable mobility still faces multiple demographic and environmental challenges. New perspectives, improvements, and solutions are needed in order to successfully apply efficient and sustainable transportation within populated environments. Implications of Mobility as a Service (MaaS) in Urban and Rural Environments: Emerging Research and Opportunities is a pivotal reference source that provides vital research on recent transportation improvements and the development of mobility systems in populated regions. While highlighting topics such as human-machine interaction, alternative vehicles, and sustainable development, this publication explores competitive solutions for transport efficiency as well as its impact on citizens' quality of life. This book is ideally designed for researchers, environmentalists, civil engineers, architects, policymakers, strategists, academicians, and students seeking current research on mobility advancements in urban and rural areas across the globe.

Fiberglass Repair, Second Edition is filled with easily accessed information, all aimed at giving a determined boat owner the necessary skills and the confidence to tackle typical fiberglass repairs, using either polyester or epoxy resin. In every boating area, hundreds of fiberglass boats-twenty, thirty, even forty years old-are still afloat, still providing all the fun of boating because their owners were willing and able to do the repair and restoration. David and Zora Aiken are long-term liveaboards who have spent a lot of time in boatyards, practicing the fiberglassing techniques outlined in this book. They have written six books with boating and outdoor themes.

Full color, richly illustrated book. The purpose of this document is to provide guidelines for identifying stream instability problems at highway stream crossings. Techniques for stream channel classification and reconnaissance, as well as rapid assessment methods for channel instability are summarized. Qualitative and quantitative geomorphic and engineering techniques useful in stream channel stability analysis are presented.

Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

Full color, richly illustrated book. This manual is part of a set of HECs issued by FHWA to provide guidance for bridge scour and stream stability analyses.

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 have shaken up long-held assumptions. There is a new way forward. This book maps out how to design transport for humans.