Characterization of Exhaust Emissions From Heavy-duty Diesel Vehicles in the HGB (FHWA/TX-12/0-6237-1)

The main goals of this project were: •To characterize emissions from different classes of HDDVs operating in the HGB area. •To identify HEs and characterize emissions from HEs. •To compare emissions of HEs and non-HEs. •To compare test results with estimates from MOVES (EPA’s emissions model). Findings and recommendations are detailed within this document.