This update adds one new data source, for a total of 14, covering 16 years, eight countries, and approximately 1.1 million cars. The analysis shows that, in the EU, the gap between official and real-world CO2 emission values continues to grow—from 9% in 2001 to 42% in 2016.
Investigates the gap between real-world and official CO2 emission values in the four largest vehicle markets in the world: China, the EU, Japan, and the United States. The analysis shows that the gap has increased in all markets since 2001.
Finds that for cars, the cost for meeting a 2025 target value of 70 g/km (as measured in the New European Driving Cycle - NEDC) is between 250 and 500 euros higher than would be the case in a footprint-based CO2 target system.
Emissions from on-road vehicles are a significant cause of air pollution in urban areas. Beijing, where air quality has historically been poor, is taking measures to reduce emissions from the transport sector.
Annual update to ICCT's ranking of U.S. airlines by fuel efficiency on domestic operations. The gap between most- and least-efficient airlines narrowed slightly to 25%, and overall industry fuel efficiency improved by 1.7%.
This annual update to the L2R series analyzes eleven data sources covering fourteen years, six countries, and almost 600,000 vehicles. In the EU the gap between official and real-world vehicle CO2 emissions grew to 38 percent in 2014.
Analyzes results of emissions tests on 32 Euro 6 diesel passenger cars from 10 different manufacturers. Results show some automakers meeting diesel NOx emissions standards under more realistic driving conditions, while others lag badly.
Inspection and maintenance (I/M) programs are key to identifying high-emitting vehicles and mitigating their impact on air quality and climate. This paper assesses best practices for I/M programs targeting heavy-duty vehicles and makes recommendations on how to improve HDV I/M programs in the future.
Analyzes the implications of a growing natural gas vehicle fleet on the emission benefits of the U.S. HDV “Phase 2” greenhouse gas rulemaking, synthesizing data on upstream emissions, vehicle emissions, and efficiency technology.