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This book provides a systematic assessment of the performance of electric and hybrid buses in urban areas on a daily basis and presents a complete set of technical scenarios to promote their efficient exploitation. It will also help readers understand how future buses will perform on specific roads and how the latest technologies can be integrated into existing fleets by proposing a methodology for evaluating the energy consumption for general and specific routes and scenarios. Covering all aspects relating to the daily use of electric and hybrid buses, including maintenance strategies, power train configuration, battery replacements, route evaluation, and charging speed, emphasis is placed on energy efficiency and effective implementation. Addressing key developments in intelligent vehicle technologies, the book presents innovative transportation technologies and a broad range of topics in transportation-related sustainability research, from vehicle systems and design, to mass transit systems.
This report presents an up-to-date description of emerging hybrid-electric drive technology for transit buses in the United States. The technology and its status, benefits, life-cycle costs, and deployment issues are discussed. The report is intended to provide transit agencies with information to compare the emissions and fuel economy expected from hybrid-electric transit buses with those expected from clean diesel or alternatively fueled buses.
TCRP Report 132: Assessment of Hybrid-Electric Transit Bus Technology provides decisionmaking guidelines coupled with a comprehensive life cycle cost model (LCCM) to assist transit managers in evaluating, selecting, and implementing hybrid-electric technology options for transit buses. The guidelines and the accompanying LCC model resulted from the gathering of site data coupled with a comprehensive review of both capital requirements and operating costs of hybrid-electric buses in comparison with those powered by traditional diesel engines. Information grew out of a sound, engineering-based, independent technical evaluation of the costs, performance, and reliability of hybrid-electric transit bus technology in actual service. The LCC model, contained on the accompanying CD-ROM (CRP-CD-71), allows the user to compare the total life cycle costs across several cost categories for up to 6 different "purchase scenarios." These scenarios let the user decide when the purchases will be made, the types of buses to be compared, the work load of the buses, and many other cost inputs in determining benefits and costs associated with alternative purchasing strategies.
Important factor in political decision-making is a public opinion as well. Therefore, it is very important to raise global ecological awareness and wider public education regarding ecology. Goal of this book is to bring closer to the readers new drive technologies that are intended to environment and nature protection. The book presents modern technique achievements and technologies applied in the implementation of electric vehicles. Special attention was paid to energy efficiency of EV's. Also today's trends, mathematical models and computer design elements of future cars are presented.
The bus is the most patronised of all land–based public passenger mode but is seen as a somewhat unglamorous means of supporting mobility and accessibility, in contrast to rail – heavy and light, yet offers so much to the travelling public as well as offering attractive sustainability opportunities. This book reflects the author's perspective on issues of importance to the preservation and health of the bus sector. The twenty one chapters cover the themes of institutional reform, performance measurement and monitoring, service quality, costing and pricing of services including commercial and non-commercial contracts, travel choice and demand, integrated bus-based systems, and public transport policy, especially challenges in growing patronage.
The knowledge economy is the added non-monetary value that society accrues from increased access to data, information, and knowledge in the new, globally connected world. ICT and technology innovation are paving the way for significant economic development opportunities for countries that have embarked in a concerted effort to model their economies according to the knowledge economy principles. Among developing countries, knowledge economy principles are being applied mostly in a sector-wise level, where government intervention with enabling policies coupled with joint efforts by the private sector, academia, and other actors are resulting in durable and sustainable benefits. Cases on Applying Knowledge Economy Principles for Economic Growth in Developing Nations examines cases from developing countries in order to derive an adapted model of knowledge economy that could be applied to developing country conditions. This book contributes to the change of paradigm on how to help developing countries in advancing to better conditions by using ICT-related technology. Covering topics such as learning organizations, green technology, and sustainable organizations, this is a dynamic resource for emerging economies, researchers, students, professors, academicians, and multilateral organizations helping developing countries.
The Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) established the Congestion Mitigation and Air Quality Improvement (CMAQ) Program. The CMAQ Program emphasizes the importance of the link between transportation and air quality, by providing 6 billion dollars between 1992-1997 for transportation projects and programs to improve air quality. Consequently, many areas will be able to implement transportation control measures (TCMs), in compliance with the mandates of the Clean Air Act Amendments of 1990 (CAAA).
Technologies and Approaches to Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles evaluates various technologies and methods that could improve the fuel economy of medium- and heavy-duty vehicles, such as tractor-trailers, transit buses, and work trucks. The book also recommends approaches that federal agencies could use to regulate these vehicles' fuel consumption. Currently there are no fuel consumption standards for such vehicles, which account for about 26 percent of the transportation fuel used in the U.S. The miles-per-gallon measure used to regulate the fuel economy of passenger cars. is not appropriate for medium- and heavy-duty vehicles, which are designed above all to carry loads efficiently. Instead, any regulation of medium- and heavy-duty vehicles should use a metric that reflects the efficiency with which a vehicle moves goods or passengers, such as gallons per ton-mile, a unit that reflects the amount of fuel a vehicle would use to carry a ton of goods one mile. This is called load-specific fuel consumption (LSFC). The book estimates the improvements that various technologies could achieve over the next decade in seven vehicle types. For example, using advanced diesel engines in tractor-trailers could lower their fuel consumption by up to 20 percent by 2020, and improved aerodynamics could yield an 11 percent reduction. Hybrid powertrains could lower the fuel consumption of vehicles that stop frequently, such as garbage trucks and transit buses, by as much 35 percent in the same time frame.