Miami has about 5.5 million people living within its city limits. Numbers like that mean you need a game plan when you're traveling to your favorite spots. With the Miami-Dade Transit Tracker, keep track of the Metrorail train or Kendall Cruiser bus. Get real-time train arrival times and the ability to check the location of trains as they approach a station. The app lets users submit comments and suggestions if they have a problem with a particular station. And talk about detail: the app shows users the status of elevator and escalator service at Metrorail and Metromover stations, which will certainly save you a headache or two.