Search Results

One weird trick to improve airline efficiency - gain belly weight!

In our recent transpacific airline fuel-efficiency ranking, we quantified the passenger-based fuel efficiency of 20 airlines after correcting for cargo carried on passenger flights ("belly freight...Would ICCT's recent transpacific fuel efficiency ranking change if dedicated freighters were taken into account? Did the rankings incorrectly reward airlines for carrying belly freight when putting...
Published 2018.02.22: Blog Post

Review and evaluation of vehicle fuel efficiency labeling and consumer information programs

Vehicle Fuel Efficiency Labeling (VFEL) is used by numerous countries worldwide to improve the fuel efficiency of their transport fleets. The theory behind VFEL is that better-informed consumers are...
Published 2016.01.27: Publication

Market analysis of heavy-duty vehicles in India

The Government of India has begun the formal process of considering regulation of the fuel efficiency of new trucks and buses. In any regulatory development process, a thorough understanding of the...
Published 2015.08.10: Publication

Hybrids break into the Japanese market (July 2015 update)

Japan's 2013 passenger vehicle fuel economy guide is out (Japanese only), and for those interested in these matters it provides much food for thought. The most striking finding is that the fuel...Japan's just-released 2013 data shows that fuel economy of new PVs there improved 7% in 2012–2013, from 21.1 to 22.5 km/L (10-15 mode). Fuel economy is up more than 80% since 1995, and averaged 6%...
Published 2015.07.28: Blog Post

Japan light commercial vehicle fuel economy standards for 2022

In March, an advisory committee to Japan’s Ministry of Land, Infrastructure, Transport and Tourism (MLIT) and Ministry of Economy, Trade, and Industry (METI) finalized new fuel economy standards for...
Published 2015.04.28: Publication

A Rorschach test for transport geeks: Passenger vehicle fuel efficiency in Japan

The latest version of Japan’s fuel economy guide for passenger vehicles was posted last week (Japanese only). Released annually by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT)...Is the fact that Japanese automakers stay 5–7 years ahead of regulatory targets evidence that they're geniuses, or that their regulators are unable to set realistic targets, or something in between?
Published 2015.04.03: Blog Post

Hybrids break through in the Japan auto market

Japan’s 2012 passenger vehicle fuel economy guide is out (Japanese only), and for those interested in these matters it provides much food for thought. The most striking finding is that the fuel...Overall, fuel economy has improved by more than 70% in Japan since 1995, and the rate of improvement has averaged 6% annually over the past five years. Much of that can be attributed to the rise of...
Published 2014.04.04: Blog Post

Renewed and enhanced subsidies for energy-efficient vehicles in China

In order to increase the market share of clean, energy-efficient, advanced technology vehicles, the Chinese government offers various fiscal incentives (“market-pull” measures) to complement...
Published 2013.11.22: Publication

Global Fuel Economy Initiative's networking meeting

Materials from the GFEI's global networking meeting, held June 20 and 21 at UNEP's headquarters in Paris, are now online here. Quoting from the GFEI site's description of the event: [D]elegates...
Published 2013.06.25: News

Transportation efficiency in 2030

Transportation of people and goods currently contributes about a quarter of the world’s greenhouse gas emissions, and this share is growing. Unprecedented income and population growth in the...Modeling different transportation scenarios shows interesting trends in GHG emissions from transport through 2030 given the  "policy pipeline” in the world's largest vehicle markets.
Published 2012.04.27: Blog Post

In-use Testing for CO2 and Fuel Economy in the United States

  China is considering including an after-production conformity test as part of China’s Phase 3 passenger car fuel consumption standard implementation and enforcement plan and is looking for...
Published 2012.03.09: Publication

Inertia classes proposal

Historically the weight of a vehicle was represented by hanging rotating inertia mass on a dynamometer. This approach required the use of discrete inertia classes and an upper limit for inertia mass...
Published 2011.06.17: Publication

Inertia classes in worldwide harmonized light vehicle test procedure (WLTP) development

The definition of vehicle weight used for testing procedures is an important decision when drafting the regulation on determining emission values under the WLTP. Currently, different inertia class...
Published 2011.05.18: Publication

Passenger Vehicle Greenhouse Gas and Fuel Economy Standards

Governments around the world are currently grappling with two distinct but interconnected issues—how to reduce emissions of climate-changing greenhouse gases (GHG) and how to reduce dependence on...
Published 2007.07.02: Publication