Assessment of hybrid-drive bus fuel savings for Brazilian urban transit

Suzana Kahn Ribeiro and Márcio De Almeida D'agosto *

Transportation Planning and Technology, 2004, vol. 27, issue 6, 483-509

Abstract: Buses are the main transit mode in Brazil, transporting more than 55 million passengers per day. Most of these vehicles run on diesel oil causing a dependence on oil, extensive greenhouse gas emissions and increasing air pollution in urban areas. In order to improve this situation, options for Brazilian cities include the use of alternative fuels and new propulsion technologies, such as hybrid vehicles. This paper proposes a procedure for evaluating the performance of a recently developed hybrid-drive technology. A simple procedure is presented to compare hybrid-drive buses with conventional diesel buses in urban operations, particularly with respect to fuel economy. Next the potential for reducing diesel oil consumption through the use of hybrid-drive buses is assessed. Field tests carried out by the authors indicate that fuel consumption improvement through the use of hybrid-drive buses would certainly exceed 20%, resulting in lower fuel costs and carbon dioxide (CO 2 ) emissions.

Date: 2004
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DOI: 10.1080/0308106042000316376

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