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Study finds that increased vehicle travel and decreased occupancy have undercut the impact of improving fuel economy over last 40 years

Green Car Congress

Sivak found that while the vehicle fuel economy of the entire light-duty fleet improved by 40% (from 13 mpg US to 21.6 l/100km), because of the decrease in vehicle load, the occupant fuel economy only improved by 17% (from 24.8 occupants carried) decreased by 27% (from 1.9 mpg US, or from 18.1 l/100km to 10.9

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Obama climate plan calls for new fuel economy standards for heavy-duty vehicles post-2018; cleaner fuels and investment in advanced fossil energy

Green Car Congress

Among the transportation-related elements of US President Barack Obama’s new climate action plan, which he is outlining today in a speech at Georgetown University, is the development of new fuel economy standards for heavy-duty vehicles post-2018. Climate Change Emissions Fuel Efficiency Fuels Heavy-duty Policy'

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National Research Council Report Explores Improving Fuel Economy of Medium- and Heavy-Duty Vehicles; Recommends Immediately Beginning Developing a Regulatory Approach

Green Car Congress

The National Research Council has released a prepublication edition of a new congressionally mandated report that evaluates various technologies and methods that could improve the fuel economy of medium- and heavy-duty vehicles (MHDVs), such as tractor-trailers, transit buses, and work trucks.

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CEPS task force report identifies tightening emissions standards as key policy to hit EU 60% reduction in transport GHG; full life-cycle emissions optimal metric

Green Car Congress

The report of the task force, which was convened in 2011, brought together the views of a diverse group of stakeholders, including the car and oil industries, business associations, international organizations, EU member states and NGOs. Focusing on one specific technology—e.g.

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Study Finds That Implementation of a Portfolio of Transportation Strategies Will Be Required for Significant Reductions in GHG from Transportation Sector; Pricing Strategies Have the Largest Potential

Green Car Congress

Strong economy-wide pricing measures (such as a $5.00 per gallon fuel tax by 2050) could result in an additional reduction of 28% in GHG emissions. The Moving Cooler baseline extrapolated these projections further to 2050, resulting in a potential doubling or greater of fleet fuel efficiency. percent to 3.6

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MIT Energy Initiative report on transforming the US transportation system by 2050 to address climate challenges

Green Car Congress

Achieving our overall goal—reducing fleet fuel and energy consumption and GHGs by three-quarters or more—will be extremely challenging. Average on-road fuel consumptions (tank to wheels) of the different propulsion systems in an average light-duty vehicle: 2010, 2030, and 2050. —John Heywood.

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