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Sustainable Transportation

Sustainable transportation reduces emissions and improves air quality. The National Academies research cleaner fuels, vehicle efficiency, and policies that promote greener mobility.

What's happening

Video Recordings from TRB Annual Meeting Now Available

Announcement

The 2026 TRB Annual Meeting brought together thousands of transportation researchers, practitioners, and policymakers to share current research and discuss pressing issues across all transportation modes. Watch sessions featuring high-profile speakers focused on the surface transportation funding reauthorization bill, megaprojects, road safety, and modernizing transportation systems.

Featured Publications

2025 Cooperative Research Programs Annual Report

2026

Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy—2025-2035

Consensus Study Report

2021

Investing in Transportation Resilience: A Framework for Informed Choices

2021

Options for Reducing Lead Emissions from Piston-Engine Aircraft

2021

Reducing Fuel Consumption and Greenhouse Gas Emissions of Medium- and Heavy-Duty Vehicles, Phase Two: Final Report

Consensus Study Report

2020

Featured work

Study on Data, Metrics, and Analytic Tools for Transportation Investments that Support Family Quality of Life and Communities

Consensus/Advisory Activity

Lead Emissions from Piston-Powered General Aviation Aircraft

Consensus/Advisory Activity

Assessment of Technologies for Improving Fuel Economy of Light-Duty Vehicles–Phase 3

Consensus/Advisory Activity

Review of the Research Program of the U.S. DRIVE Partnership, Phase 5

Consensus/Advisory Activity

Propulsion and Energy Systems to Reduce Commercial Aviation Carbon Emissions

Consensus/Advisory Activity

Determinants of Market Adoption of Advanced Energy Efficiency and Clean Energy Technologies

Consensus/Advisory Activity

Assessment of Technologies and Approaches for Reducing the Fuel Consumption of Medium- and Heavy-Duty Vehicles, Phase 2

Consensus/Advisory Activity

Assessment of Technologies for Improving Fuel Economy of Light-Duty Vehicles – Phase 2

Consensus/Advisory Activity

Upcoming events

Units

Transportation Research Board Executive Office

Oversight Unit

National Cooperative Highway Research Program

Oversight Unit

Center for Advancing Science and Technology (CAST)

Oversight Unit

Transit Cooperative Research Program

Oversight Unit

TRB Consensus and Advisory Studies Division

Oversight Unit

Technical Activities Division

Oversight Unit

Transportation Research Board (TRB)

Oversight Unit

Cargo train transportation - Freight railway. Used for TRB

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