Estimating the Effects of Pavement Condition on Vehicle Operating Costs (2012) / Chapter Skim
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Pages 51-54
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From page 51... ...
51 In recent years, growing world population and the increased demand for road transportation (with its associated energy requirements that are primarily derived from fossil fuels) have led to the consideration, design, and development of energy-efficient vehicles and processes.
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From page 52... ...
efficiency is assumed to not be affected by roughness. By substituting new and old efficiency in Equation 6.2, the following equation is obtained: %FC P P P P P P old old old ne 2 1 2 1 1 2 1 1 − = × −( )
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From page 53... ...
current decade and vehicles have become smaller and more fuel efficient. Typical drag coefficients for current passenger cars range from 0.3 to 0.52 and is expected to range from 0.25 to 0.35 for future passenger cars (US Department of Energy, 2010)
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From page 54... ...
54 propulsion processes, environmental issues, aerodynamic/ pavement friction efficiency, and congestion impacts. The technologies presented in this chapter (and Appendix D)
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