Research
Building a global database of real-world emissions to improve local air quality and mitigate climate change.
The TRUE Initiative collaborates with local governments, on-the-ground partners, and research institutions to gather and analyze real-world emissions data. These valuable insights help cities around the world as they seek to craft low-emission transportation policies and improve existing programs. These actions will provide effective actions to address the health and climate impacts from on-road vehicles.
Our methods for collecting and analyzing data drives action towards cleaner urban transport.
Explore our research
Report
US & Canada
Colorado
Development and application of a US real-world vehicle emissions database
Analyzes remote sensing data from VA and CO to investigate the emissions of U.S. cars and trucks….
November 1, 2020
Case Study
US & Canada
Colorado
Emissions deterioration of U.S. gasoline light-duty vehicles and trucks
Analyzes real-world emissions of diesel pickup trucks in the United States….
October 30, 2020
Case Study
US & Canada
Colorado
Remote sensing of heavy-duty vehicle emissions in the United States
Uses the TRUE U.S. emissions database to analyze emissions from HDVs….
October 30, 2020
Case Study
US & Canada
Colorado
Emissions distributions by vehicle age and policy implications
Uses the TRUE U.S. emissions database to categorize emissions by vehicle age….
October 30, 2020
Report
Europe
Paris
Impacts of the Paris low-emission zone and implications for other cities
Estimates reductions in NOx emissions under the current implementation schedule for the Paris LEZ….
March 12, 2020
Report
Europe
Paris
Remote sensing of motor vehicle emissions in Paris
Reports results of an on-road vehicle emissions measurement campaign carried out in Paris in summer 2018….
September 10, 2019