Development of an empirical model to estimate real-world fine particulate matter emission factors: the traffic air quality model.

Journal of the Air & Waste Management Association, November, 2006 by Soliman, Ahmed S.M.; Jacko, Robert B.; Palmer, George M.

ABSTRACT

The purpose of the study was to quantify the impact of traffic conditions, such as free flow and congestion, on local air quality. The Borman Expressway (I-80/94) in Northwest Indiana is considered a test bed for this research because of the high volume of class 9 truck traffic traveling on it, as well as the existing and continuing installation of the Intelligent Transportation System (ITS) to improve traffic management along the highway stretch. An empirical traffic air quality (TAQ) model was developed to estimate the fine particulate matter (P[M.sub.2.5]) emission factors (grams per kilometer) based solely on the measured traffic parameters, namely, average speed, average acceleration, and class 9 truck density. The TAQ model has shown better...

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