Chicago publishes its 311 service requests as open data. I wanted one plain answer from it: how long does each ward wait for a repair?

So I built https://chiwardboard.com. It groups 311 requests by ward and type and shows typical wait times side by side.

The spread surprised me. When I checked this week, a pothole took about 2 days in one ward and almost 39 in another.

It stays nonpartisan on purpose: just the numbers, by ward.

If you've built on a city open data portal, what tripped you up?