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
New York City
Air quality and health impacts of diesel truck emissions in New York City and policy implications
Uses real-world emissions measurements to examine inequitable exposure to air pollution from diesel trucks….
April 13, 2022
Report
Europe
Warsaw
Evaluation of real-world vehicle emissions in Warsaw
Examines emissions and offers policy recommendations to improve the environmental performance of the fleet….
April 6, 2022
PO
Technical Note
Europe
London
Real-world emissions of passenger cars impacted by the London Ultra Low Emission Zone expansion
Analyzes emissions of vehicles impacted by the London ULEZ expansion….
October 21, 2021
Report
Asia
Seoul
Remote sensing of motor vehicle emissions in Seoul
Analyzes remote sensing data and provides recommendations for Seoul’s LEZs….
November 20, 2020
Report
Europe
Sofia
Impacts of a low-emission zone in Sofia
Assesses the NOx and PM reductions possible from LEZ implementation schedules in Sofia, Bulgaria….
November 20, 2020
Report
Europe
Brussels
Evaluation of real-world vehicle emissions in Brussels
Reports the results and analysis of a 2020 remote-sensing measurement campaign in Brussels….
November 20, 2020