TR News May–June 2010: Climate Change: Curbing Transportation's Contribution (2010) / Chapter Skim
Currently Skimming:
Pages 34-39
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 34... ...
TR N EW S 26 8 M AY –J UN E 20 10 34 The author is Transportation Energy Analyst, Center for Transportation Research, Argonne National Laboratory, Argonne, Illinois. Freight is ubiquitous, moving raw materialsand intermediate products between facto-ries, farms, and service providers, andbringing finished goods to warehouses, retailers, and consumers.
|
From page 35... ...
TR N EW S 268 M AY–JUN E 2010 35 Payload Efficiency In passenger travel, consumers may defer discretionary trips; in contrast, shippers must move their goods to market. This leaves less scope for reducing travel.
|
From page 36... ...
TR N EW S 26 8 M AY –J UN E 20 10 36 annual improvements in energy efficiency of 0.8 percent for heavy trucks and 0.1 percent to 0.2 percent for rail and domestic shipping for the next 25 years (2)
|
From page 37... ...
TR N EW S 268 M AY–JUN E 2010 37 drag with integrated designs incorporating such features as fairings, undercarriage flow control, boat tails, and gap seals. As shown in Table 2 (next page)
|
From page 38... ...
TR N EW S 26 8 M AY –J UN E 20 10 38 tractors, but trailer aerodynamics has changed little; when the equipment is owned by shippers, not by carriers, the purchase decision often focuses on low purchase or maintenance cost for the shipper, instead of on fuel economy for the carrier. As shown in Table 2, aerodynamic tractors coupled with three aerodynamic trailers could improve fuel efficiency by more than 11 percent by 2020 (9)
|
From page 39... ...
TR N EW S 268 M AY–JUN E 2010 39 Outlook Energy use and GHG emissions are expected to grow faster from freight trucks than from passenger cars in the next decades. Achieving large reductions in the GHG emissions from U.S.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.