Vehicle traffic impacts public health in many ways. Traffic can limit opportunities for
walking and physical activity, and can be a safety hazard. Traffic contributes to
local air pollution and noise levels, especially near major roadways.
For more information, see MN Public Health
Data Access: Traffic Exposure
- This map displays census tract estimates of the number and percent of Minnesota residents living within 300 meters of busy roads, where air pollution from motor vehicle traffic is highest. Busy roads are defined as any road segment with annualized average daily traffic (AADT) greater than 10,000 vehicles.
- Census tracts are small, relatively permanent geographies that are smaller than counties, larger than census block groups, and roughly equivalent to a neighborhood. They are determined by the U.S. Census Bureau and are updated prior to each decennial census (last updated for 2010 census). Census tracts generally have a population between 1,200 and 8,000 people, with an optimal size of 4,000 people.
- County name in hover-over window is primary county of that census tract, as assigned by the U.S. Census Bureau. Some census tracts may extend into another Minnesota county.
- To learn more about how these measures were calculated see
About traffic data.