This is TrainingPeaks Virtual's free ride interface. Here you will find all available routes. You can choose “Free Ride” which starts you on the eastern side of the island and you can choose where to go from there, or you can select from the list of routes and follow a set course. When you’ve made your choice, click “Let’s Ride” to start.
Additionally, you can select the route you would like to “Train” on. Select the route you want to ride, then change to the “Train” option and when you select a workout you’ll do it on your chosen route.