Trends in on-road transportation, energy, and emissions

The 2018 Critical Review (CR) (Frey 2018) provided a comprehensive summary of motor vehicle technologies,fuels, emissions, and emission controls. It demonstrated how these have changed over past decades and projected how technology innovations and regulations related to emissions and efficiency are driving the changes. Herein, expert discussants and the CR author provide additional perspectives and information on the topic. The appearance of these discussants as coauthors does not necessarily indicate their agreement with the opinions of other discussants. Transportation has changed several times over past 120 years. Early gasoline engines competed with steam-powered and electric means of locomotion. There were experiments with gas turbines in the 1950s, with diesel-powered passenger cars gaining ground in the 1980s in response to oil embargos and fuel shortages. Natural gas, propane, ethanol, and hydrogen also are being used as fuels. Electric vehicles (EVs) recharged with grid power will continually reduce air pollutant and greenhouse gas (GHG) emissions as power generation becomes more efficient and renewable.

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    • © 2018 A&WMA. Abstract reprinted with permission of Taylor & Francis.
  • Authors:
    • Altshuler, Samuel L.
    • Ayala, Alberto
    • Collet, Susan
    • Chow, Judith C
    • Frey, H Christopher
    • Shaikh, Rashid
    • Stevenson, Eric D
    • Walsh, Michael P
    • Watson, John G
  • Publication Date: 2018-10


  • English

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  • Accession Number: 01683388
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 2 2018 3:00PM