Peloton stationary bikes are not supported by TrainerRoad.
Peloton doesn't broadcast its workout data, and it can't be paired to TrainerRoad. It's also not possible to automatically sync rides to TrainerRoad that are completed on the Peloton.
As a workaround, completed Peloton workouts can sync to Strava, and then automatically import into TrainerRoad. Enable Activity Sync with Strava to complete this process.
Below is a link to our forum where our users discuss Peloton and other options for training while out of town: TrainerRoad Forum
Another good source of information on how to maintain training while traveling is the following blog post and video: How to Avoid Losing Fitness While Traveling: 3 Solutions for Cyclists