Income Explains 19% of Philly's 311 Wait Times. The Other 81% Doesn't Care About Income.

Income tier predicts 19% of 311 wait times. The other 81% is zip-by-zip — Fairhill runs at higher-tier speeds, Elmwood waits 17.9 days for the same 311 service. The within-tier story is bigger than the income-tier story.