WIT Press


Topographical Effects On Global Emissions From Mobile Sources In Urban Networks

Price

Free (open access)

Paper DOI

10.2495/UT010491

Volume

52

Pages

12

Published

2001

Size

1,153 kb

Author(s)

F. Fresard & M. Osses

Abstract

In Santiago de Chile, as in most megacities of the world, transportation activity has an important effect on pollutant emissions. In the case of Santiago, 70% of the total NOx emissions are related to transportation. Likewise, mobile sources generate 46% of total VOC. Due to this high incidence of mobile sources on atmospheric pollution, and the need to improve the emission inventory of Santiago, a better modeling of these effects is required. We incorporate in this modeling some new aspects, such as the grade of the roads. The methodology we use is based on the computation of both emission factors, that are a function of pollutant type, vehicle type and speed; and grade correction factors, which are a function of vehicle weight, pollutant t

Keywords