Why be energy efficient?

Diesel engine close-up (truck)

Modern diesel engine (iStock).

There are significant opportunities across the transport sector to improve fuel efficiency, with a range of technologies and innovations such as reducing vehicle weight, alternative drivetrains, improved aerodynamics and alternative fuels.

This section looks at the technology opportunities in more detail. The Road transport, Rail freight transport and Air transport pages on EEX look at energy efficiency opportunities within each sub-sector.

Combining best practice technological improvements can lead to 10–30% savings in energy costs in each of the major commercial transport sectors.


  • Improve the physical structure

    Better fuel efficiency can be achieved by using technologies for reducing rolling and air resistance. Many technologies exist to improve...
  • Reduce rolling-resistance

    Tyre rolling-resistance accounts for nearly 13% of energy use by combination trucks. Generally, combination trucks have two sets of wheels...
See all opportunities in Transport technologies

For information on how these opportunities apply within specific transport sectors, see the EEX content on each transport sector.

For information on alternative fuels, see Alternative Transport Fuels.

Key resources

Road and rail transport technologies

Air transport technologies

  • IATA Technology Roadmap Report 2013
    • International Air Transport Assocation

    The purpose of this IATA report was to identify and rank a range of technologies, applicable over different time periods that will reduce greenhouse gas emissions from aviation. These technologies were reviewed for both applicability and their development timeframe.

    The roadmap was originally published in 2009, then updated in 2013.

  • Overview on Drag Reduction Technologies for Civil Transport Aircraft 2004 (Opens in a new window)

    This report by the French Aerospace Laboratory gives an overview of the results obtained during testing of different methods of drag reduction and looks to evaluate the potential gains offered by the different technologies.