The TriStar Traffic mobile app provides a quick and easy way to view TDOT's live-streaming traffic cameras across the state of Tennessee. TriStar Traffic features: β’ Viewing individual camera feeds on an interactive map of Tennessee. β’ Save cameras to your favorites for easy access (great for commuting). β’ Location persistence. The app will always open where the user left it last. β’ Location-based sorting of your favorite traffic cameras. β’ Integration with Google Maps traffic overlay.