air quality

This article discusses assessment of the the physical, chemical and toxicological characteristics of particulate emissions from four light-duty gasoline direct injection vehicles when operated over the LA92 driving cycle. Results showed that particle mass and number emissions increased markedly during accelerations.

This paper presents a simple method for projecting the impact of new bicycle facilities on vehicle kilometers traveled.

This report summarizes outcomes from a literature review to determine whether and how the congestion mitigation and air quality improvement (CMAQ) methods could be modified to better reflect emerging data and methods for estimating reductions in vehicle miles traveled (VMT) from new bike facilities.

This report summarizes research outcomes in an effort to update the California Air Resources Board’s (CARB) current methodology for estimating greenhouse gas (GHG) emission reductions from adding new bicycle paths, lanes, and cycle tracks.

This report summarizes outcomes from a literature review to determine whether and how the congestion mitigation and air quality improvement (CMAQ) methods could be modified to better reflect emerging data and methods for estimating reductions in vehicle miles traveled (VMT) from new pedestrian facilities, the first step in estimating GHG emission reductions.

This report summarizes research outcomes in an effort to update the California Air Resources Board (CARB)’s current methodology for estimating greenhouse gas (GHG) emission reductions from adding new pedestrian facilities, including sidewalks and shared-use Class I bicycle paths.