We recently published an article on using an agent-based modeling framework to study population exposure to traffic-related pollution and issues pertaining to environmental justice and data-resolution. I thought this article may be of particular interest to the members of this group.
Some key highlights of the article:
We developed an exposure modeling framework by integrating an activity-based travel demand model (DaySIM), a dynamic traffic assignment model (MATSim), a mobile source emissions model (EPA MOVES), and a dispersion model (RLINE). This framework was used to estimate human activities, roadway link-level emissions, concentrations on a 500 meter grid, and exposure to NOx at the person-level and population subgroup-level
The study area is Hillsborough County, Florida (Tampa)
Below poverty group, blacks, working adults, and individuals with longer travel times had disproportionately high exposures
Exposure disparities for minorities increased sharply at higher exposure levels
Use of low-resolution activities and concentration data underestimated exposures on average. This underestimation of exposure is more pronounced with the use of just low-resolution concentration data as opposed to the use of just low-resolution activity data; this suggests use of high-resolution concentration data may be more important than use of high-resolution activity data to estimate exposures
- Sashi
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