TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 429: Geotechnical Information Practices in Design-Build Projects addresses how states use geotechnical information in solicitation documents and contracts for design-build highway projects. The report examines current practices regarding the allocation of geotechnical risk and the level of geotechnical information provided wi...

TRB’s Airport Cooperative Research Program (ACRP) Report 63: Measurement of Gaseous HAP Emissions from Idling Aircraft as a Function of Engine and Ambient Conditions is designed to help improve the assessment of hazardous air pollutants (HAP) emissions at airports based on specific aircraft operating parameters and changes in ambient conditions.

The Congressional Budget Office has released a report that examines how a proposed rule to tighten fuel economy standards for cars, pick-up trucks, and other light-duty vehicles would affect cash flows of the Highway Trust Fund.

The Institute of Transport Economics in Norway has released a report that explores the travel patterns of car commuters, busy drivers, locally mobile seniors, public transport users and cyclists, and active youth. The report also assesses the challenges and opportunities to enable sustainable mobility among these segments.

The Center for Clean Air Policy has released a report that summarizes the presentations and discussions from a workshop on climate adaptation and transportation held in November 2011.

TRB’s Transportation Research Circular E-C162: Winter Maintenance and Surface Transportation Weather includes papers that were presented at the April 30-May 3, 2012, conference in Coralville, Iowa. Issues addressed by the papers include environmental stewardship and sustainability, road safety under winter conditions, decision support systems, winter surface friction, blowing and drifting snow,...

The Texas Transportation Institute at Texas A&M University has released a report that explores the a framework for levying mileage-based user fees designed to achieve various air quality improvement policy objectives. 

The Mineta Transportation Institute has released a report that explores ecodriving. Ecodriving is a collection of changes to driving behavior and vehicle maintenance designed to impact fuel consumption and greenhouse gas emissions in existing vehicles.

The Partnership for AiR Transportation Noise and Emissions Reduction (PARTNER) has released a report that examines the extent to which aircraft carbon dioxide emission standards may influence future aircraft fleet development, evolution, and associated fleet-wide carbon dioxide emissions.

Eco-Logica Ltd has released the latest issue of its peer-reviewed journal, which focuses on global research and practices that encourage sustainable transportation.