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Models & Methodologies

Many different software programs and other modeling techniques are utilized conducting air quality analyses. For instance, various EPA models can be used to predict emissions of different pollutants from on-road and nonroad sources, to calculate delays and queues that occur at signalized intersections, and to provide estimates on how commuter benefits can impact vehicle emissions, as well as fuel use and costs. In addition, FHWA has developed some tools based on these models to make emission inventory calculations in rural or small urban areas and to provide user-friendly interfaces to some of the models

Updated: 8/4/2015
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