This Transportation Research Record contains 17 papers on the subject of air quality. Specific topics discussed are as follows: emission impacts of high-occupancy-vehicle lane operations; toll collection and electronic screening impact on heavy-duty vehicle emissions; emissions from extremely low-emitting vehicles; evaluating mobile source air toxic emissions; emissions from new and in-use transit buses; ultrafine particle number concentrations from hybrid urban transit buses; a traffic air quality simulation model; air quality measurements inside diesel truck cabs during idling; regional vehicle-mapping tables for MOBILE emissions model; variability of mobile source air toxic emissions factors with MOBILE6.2; emissions of dump trucks fueled with B20 biodiesel versus petroleum diesel; driver and road type effects on gas and particulate emissions; speed- and facility-specific emission estimates for on-road light-duty vehicles; road pollution alert system; energy and environmental impacts of roadway grades; and commuter exposure to fine particulates inside automobiles. The 2006 series of the Transportation Research Record: Journal of the Transportation Research Board consists of approximately 820 papers selected from 2,800 submissions after rigorous peer review. The peer review for each paper published in this volume was coordinated by the sponsoring committee acknowledged at the end of the text; members of the sponsoring committees for the papers in this volume are listed on page II. Many of these papers were presented at the 85th Annual Meeting of the Transportation Research Board in January 2006. (Author/publisher)
Samenvatting