Abstract
The next generation of air quality models demands a better understanding of medium- and heavy-duty vehicle activities and the relationship between these activities and emissions. Understanding fleet characteristics and their associated impact, therefore, is critically important. Data collected in a 1996 commercial vehicle trip survey for the Atlanta region are presented and analyzed. A survey data collection effort undertaken in 1996, which included the collection of data related to spatial, temporal, cargo, land use, and vehicle characteristics, is described. The results of a series of statistical analyses are reported and discussed. The results of geographic information systems analyses, which provide a spatial picture of commercial vehicle activity, are presented. The spatial analysis combines vehicle, cargo, and land use characteristics with spatial and temporal data within the study area. The results of this study provide a compelling snapshot of commercial vehicle activity in the Atlanta area.
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