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TRUE Initiative

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.

Learn more about our approach.

Explore our research

Case Study
Particulate matter emissions from U.S. gasoline light-duty vehicles and trucks
US & Canada
Colorado

Particulate matter emissions from U.S. gasoline light-duty vehicles and trucks

New analysis finds increased levels of particulate matter tailpipe emissions from light-duty gasoline cars and trucks across the US….
June 22, 2023
Report
Assessment of real-world vehicle emissions in Scotland in 2021
Europe
Edinburgh

Assessment of real-world vehicle emissions in Scotland in 2021

Analyzes real-world emissions data from Edinburgh and Glasgow to predict the effectiveness of proposed LEZs….
April 20, 2023
Technical Note
Policy assessment using real-world emissions data from vehicles in Scottish cities
Europe
Edinburgh

Policy assessment using real-world emissions data from vehicles in Scottish cities

Analysis of emissions from the Scottish fleet and the implications for future low-emission zones….
April 20, 2023
Technical Note
Warsaw low-emission zone: The potential emissions benefits and impact on drivers
Europe
Warsaw

Warsaw low-emission zone: The potential emissions benefits and impact on drivers

Compares the emissions benefits of two potential LEZ designs based on information gathered from remote sensing….
November 23, 2022
Report
Measurement of real-world motor vehicle emissions in Jakarta
Asia
Jakarta

Measurement of real-world motor vehicle emissions in Jakarta

Reports findings of the Jakarta remote sensing campaign and offers policy recommendations to improve air quality in the region….
November 22, 2022
ID
Report
Air quality and health impacts of diesel truck emissions in New York City and policy implications
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