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Using naturalistic driving data to assess variations in fuel efficiency among individual drivers
Fuel consumption rates were studied from a naturalistic driving data set employing a fleet of identical passenger vehicles with gasoline engines and automatic transmissions. One hundred and seventeen drivers traveled a total of over 342,000 kilometers (213,000 miles), unsupervised, using one of the...
Unemployment rate and price of gasoline predict the fuel economy of purchased new vehicles
This study examined the relationship between two economic indicators-the unemployment rate and the price of gasoline-and the fuel economy of purchased new vehicles. A regression analysis was performed on U.S. monthly data from October 2007 through February 2011. The main finding is that the fuel...
Recent fuel economy trends for new vehicles in the U.S
This report documents the improvements in fuel economy of new light-duty vehicles in the U.S. from 2008 to 2012. The analyses were performed both unweighted (based only on the range of vehicle models offered for sale) and weighted by sales (based on actual consumer purchases). The information is...
Eco-driving strategic, tactical, and operational decisions of the driver that influence vehicle fuel economy.
This paper presents information about the effects of decisions that a driver can make to influence on-road fuel economy of light-duty vehicles. These include strategic decisions (vehicle selection and maintenance), tactical decisions (route selection and vehicle load), and operational decisions (...
Benefits of recent improvements in vehicle fuel economy on overall fuel consumption and emissions
For the past several years, we have calculated (on a monthly basis) the average, salesweighted fuel economy of all light-duty vehicles (cars, pickup trucks, vans, and SUVs) sold in the U.S. The results indicate that, from October 2007 to September 2012, the average fuel economy has improved by 18...
Effects of vehicle fuel economy, distance travelled, and vehicle load on the amount of fuel used for personal transportation 1970-2010.
This study examined the changes in the U.S. in vehicle fuel economy, distance travelled, and vehicle load (occupants carried) between 1970 and 2010, and the effects of those changes on the amounts of fuel consumed. All light-duty vehicles were included in the analysis. The results indicate that...
Vehicle capacity and fuel consumption in household fleets constraint-based microsimulation mode.
Vehicle capability is one of the factors that constrain the set of transportation options available for personal transportation. The capacity for carrying passengers and cargo is of particular interest when energy consumption is considered, because the use of more efficient vehicles may be limited...
Fixing Detroit: how far, how fast, how fuel efficient
The Automotive Industry Crisis of 2009 is the worst the industry has ever experienced. This paper helps resolve the debate on how much and fast it should change and how it should it respond to demands for increased fuel efficiency. Looking at the actions of successful corporate turnarounds, the...
Economic indicators as predictors of the number and fuel economy of purchased new vehicles
This study examined the relationship between two economic indicators-the unemployment rate and the price of gasoline-and purchase decisions of new vehicle buyers. Two regression analyses were performed, one focusing on the number of vehicles purchased and the other one on their fuel economy. Both...
Recent reductions in carbon dioxide emissions from new vehicles
This study examined the effects of recent changes in the fuel economy of purchased new vehicles and the amount of driving on carbon dioxide emissions in the U.S. The analysis used monthly data from October 2007 through April 2009. The data are presented normalized to the situation in October 2007....

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