Louisville, Kentucky was the fifth city to join navigation app Waze’s Connected Citizens data-sharing program, when it launched two years ago, but unlike others, it’s actually using the information.

“It was easy for us to give that information because we were already collecting it,” Michael Schnuerle, Office of Civic Innovation data officer, told Route Fifty in an interview. “And we just put that on our open data portal, and they can collect it from there.” Historic traffic information is helpful, and new use cases are still being found. But Louisville still wanted to centralize its traffic-related data with Waze’s and run predictive analytics on it in real time to help with signal timing among other applications.