Olympic Changes in Atlanta

Social Index

Fulton County Social Index comparison (pdf)
Atlanta Social Index comparison (pdf)
Fulton County change in the Social Index (pdf)
Atlanta change in Social Index (pdf)

Correlation between distance and change in the Social Index

Social Index 1000 m buffer percent change
Social Index 2000 m buffer percent change
Social Index 3000 m buffer percent change
Social Index 4000 m buffer percent change
Social Index 5000 m buffer percent change
Kernel density and hotspot maps of the Social Index change (pdf)

Property Values

Fulton County median property value comparison (pdf)
Atlanta median property value comparison (pdf)
Fulton County change in the property value (pdf)
Atlanta change in the property value (pdf)

Correlation between distance and change in the property value

Median property value 1000 m buffer percent change
Median property value 2000 m buffer percent change
Median property value 3000 m buffer percent change
Median property value 4000 m buffer percent change
Median property value 5000 m buffer percent change

Land Use

Land Use Maps for the 1980s and 2003

    Land use maps for the city of Atlanta was created for both the 1980's data set and the 2003's data set.  This is for Fulton County only.  The data sets from these rasterized land use maps were used in the calculation of the expected change in land use for the chi squared test.

Land use for the city of Atlanta

This map shows the 1 km areas buffered around the venues.  Even though the areas are offset, the maps do show an increase in built up areas around the venues from before the Olympics to after the Olympics.  You can also see the difference in the areas that were buffered due to the changes in mapping for the 2003 data set.

Land use 1 km buffer around Olympic venues in Fulton County

Map of the Olympic venues with a 3 km buffer around each venue.

Land use 3 km buffer around Olympic venues in Fulton County

Map of the Olympic venues with a 5 km buffer around each venue.

Land use 5 km buffer around Olympic venues in Fulton County

Chi Squared Test

    The chi squared test showed significant results for each different distance buffer.  The following graphs show the expected land use change and observed land use change.  The expected land use change was calculated based on land use changes in the city of Atlanta and 1980's data set.

    In the 1 km buffered area around the venues, we can see that commercial and services land use category has increased significantly in 2003 than the expected value.  The residential land use category has decreased significantly in 2003 compared to the expected value and the values seen in the 1980s.  Industrial and commercial land use has gone down significantly as well compared to the 1980's land use and the expected change value.

1 km buffered area around venues

    In the 3 km buffered area around the venues, we can see that the land use category for commercial and services is below expected changes in 2003.  The residential category on the other hand, is quite close to the 1980's values and the expected change value, although it is still less than either of those values for 2003.  Industrial and commercial land use for 2003 does decrease from the expected value but the decrease is not as significant compared to the 1 km buffered area.  The land use category for Forest increased in 2003, but this could be due to the addition of parks and golf courses values added to the Forest category when we were creating a comparable land use legend.

3 km buffered area around venues

5 km buffered area around venues

    The chi squared table showing expected, observed and chi squared results indicate that the Olympic venues affected the land use in the area around the venues significantly.   A chi squared was calculated for each of the buffered zones.  The chi squared values can be found in the Total column in the table below.  The table also shows 1980's land use values, expected land use values and observed land use values.

Chi Squared values