I'm a big fan of OpenTripPlanner [0]. I mainly use it for accurate isochrones of public transit networks (super handy for figuring out where to live) but it has

I'm a big fan of OpenTripPlanner [0]. I mainly use it for accurate isochrones of public transit networks (super handy for figuring out where to live) but it has support for foot, bike and car routes as well. There was some PoC code to support traffic data [1] but it was removed [2], I believe because nobody was interested in maintaining it. If someone wants to add it back and maintain it I doubt they'd object. [0]: https://github.com/opentripplanner/OpenTripPlanner https://github.com/opentripplanner/OpenTripPlanner [1]: https://github.com/opentripplanner/OpenTripPlanner/pull/2077 https://github.com/opentripplanner/OpenTripPlanner/pull/2077 [2]: https://github.com/opentripplanner/OpenTripPlanner/pull/2698 https://github.com/opentripplanner/OpenTripPlanner/pull/2698