search

urban-displacement / displacement-typologies

The Urban Displacement Project's Displacement Typology Map code
GNU General Public License v3.0
39 stars 36 forks source link

Compare old v new SF map typologies #68

Closed annacd114 closed 4 years ago

annacd114 commented 4 years ago

Download data from the old map from UDP website. See which types have shrunk the most in terms of how many tracts fall under them

annacd114 commented 4 years ago

Summary findings from this analysis:

(note that the two sets of typologies aren't exactly identical. Since we added Ongoing Displacement as a new category that really doesn't align with the old ones, I excluded those from the comparison. I also excluded a few tracts that were marked 'college town' instead of a typology in the old version, and about 20 tracts that showed up in one map but not the other.)

From a set of 2,053 directly comparable tracts, 1,521 (almost three-quarters of them) changed from one map to the other!

Major differences in the new map vs the old include less At Risk of Gentrification, less Early/Ongoing Gentrification, more Stable Moderate/Mixed-Income, less Becoming Exclusive, and more Stable/Advanced Exclusive.

Any action based on this? We can discuss as a group.