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Pages 1-8

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From page 1...
... to a job site. This results in a broad proaches to improving the fuel efficiency of moving goods as range of varying duty cycles, from high-speed operation on opposed to setting vehicle fuel consumption standards, and highways with few stops to lower-speed urban operation identified potential costs and other impacts on the operation with many stops per mile.
From page 2...
... may be the mental metric to properly judge fuel efficiency improvements manufacturer of record, but the body builder may not design from both engineering and regulatory viewpoints, including or even specify the chassis and power train. For tractor-trailer yearly fuel savings for different technology vehicles.
From page 3...
... technologies that will play a role in reducing fuel consump The fuel-saving technologies that are already available tion in all vehicle segments include low-rolling-resistance on the market generally result in increased vehicle cost, and tires, improved transmissions, idle-reduction technologies, purchasers must weigh the additional cost against the fuel weight reduction, and driver management and coaching. savings that will accrue.
From page 4...
... Diesel engines 15 to 21 Aerodynamics 3 to 15 Gasoline engines Up to 24 Auxiliary loads 1 to 2.5 Diesel over gasoline engines 6 to 24 Rolling resistance 4.5 to 9 Improved transmissions 4 to 8 Mass (weight) reduction 2 to 5 Hybrid power trains 5 to 50 Idle reduction 5 to 9 Intelligent vehicle 8 to 15 NOTE: Potential fuel reductions are not additive.
From page 5...
... The federal government should the numbering in those chapters but are presented instead as continue to support programs in industries, national labora "Finding 4/5/6-X." tories, private companies, and universities to develop MHDV technologies for reducing fuel consumption. TABLE S-3 Fuel Consumption Reduction Potential for Typical New Vehicles, 2015-2020, and Cost-Effectiveness INDIRECT EFFECTS AND EXTERNALITIES Comparisons for Seven Vehicle Configurations In addition to the direct costs and benefits associated Cost-Effectiveness Metric with the application of new technologies, there are also in Dollars Dollars direct costs, benefits, and externalities (impacts that are not Fuel per per Breakeven expressed in market terms)
From page 6...
... Example mentary approaches than vehicle fuel efficiency standards case studies explored in this report demonstrate fuel savings for reducing fuel consumption of MHDVs, such as training of up to 15 percent or more. These savings are similar in size truck drivers on best practices, adjusting size and weight re- but independent and accumulative of other actions that may strictions on trucks, implementing market-based instruments be taken to improve fuel consumption of vehicles; therefore (e.g., fuel taxes)
From page 7...
... sector. For example, cases evaluated herein demonstrate Because regulations can lead to unintended consequences, potential fuel savings of ~2 to 17 percent with appropriately either because the variability of tasks within a vehicle class trained drivers.
From page 8...
... However, to account sentative fleets of vehicles. This should continue to for the fuel consumption benefits of hybrid power trains and provide a real-world check on the effectiveness of the transmission technology, the present engine-only tests for regulatory design on the fuel consumption of trucking emissions certification will need to be augmented with other fleets in various parts of the marketplace and in various power train components added to the engine test cell, either regions of the country.


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