This heat map of DC surfaced on Twitter on Tuesday, but not because people thought it had interesting information. It was actually just the opposite: nobody was sure what the map is trying to show. Any ideas?

The map of Georgetown and Burlieth is on DDOT’s Vision Zero website, but not to show anything. Rather, it’s just below a heading that says “Data” which talks about how DDOT will collect data. In other words, it’s being used as an abstract illustration about data, not actual data.

Eli Glazier, a local urban planner, was the first to tweet about the map. A few curious parties proceeded to theorize about what the map is actually… mapping.

Do you know? Take a guess of your own in the comments!

Abigail Zenner, is a former lobbyist turned communications specialist. She specializes in taking technical urban planning jargon and turning it into readable blog posts. When she’s not nerding out about urban planning, transportation, and American History, you may find her teaching a fitness class. Her blog posts represent her personal views only.