CO Dispersion Models For Signalized Road
Intersections: Gaussian Vs. Empirical Approach
Author(s)
G. Gualtieri & M. Tartaglia
Abstract
A comparison has been made between a Gaussian and an empirical approach to
model carbon monoxide (CO) atmospheric dispersion at a signalized road
intersection. Starting from the Webster queue and the Kunselman modal
emissions algorithms both implemented in the APRAC/3 model, the MODEM
emission model has been applied for estimating dynamic emission rates along
each link connecting to the intersection. As regards the Gaussian dispersion
approach, both the algorithm implemented in the CALINE/4 model as well as the
one in the APRAC/3 model have been applied. Their performances have been
compared with an empirical approach developed by the authors which was based
on a simplified box model applied to the intersection area. Experimental data
measured in Firenze (Italy) have been used for calib
Keywords
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