关键词：空气污染；空气质量；运输研究
摘 要：This document contains 9 papers that study algorithmic development and preliminary testing of an ecodrive application; comparative analysis of car-following models for emissions estimations; comparisons of locomotive emissions during dynamometer versus rail yard engine load tests; the ratio of in-vehicle to near-vehicle exposure concentrations of airborne fine particles; and, emission benefits of commercial vehicle lane management strategies. This issue also studies environmentally conscious highway design for vertical grades; a fuel consumption prediction model for buses; discretionary passenger vehicle idling behaviors by season and trip stage; and, a statistical study of variables associated with particulate matter exposure levels at bus shelters.