Marta.io is currently a dashboard for Marta's realtime train API, and shows train arrival estimates:

It's a simple Nodejs app that uses AngularJS on the client-side. It has no database or other server-side storage. The server-side simply serves as a cache of a single API endpoint from Marta. The client-side code consumes that proxied data and does the rest of the work. We scaffolded this app using Yeoman's Angular Fullstack Generator.

As of March 2015, there now exists a dev-only task that parses MARTA's GTFS files (CSV format), and creates JSON files for schedule-related data. See here or here for more information.

Can you add a map so I can see the train?

I can, but all the ideas I have for this suck. I'll need a designer to figure out a couple things for me (hopefully with comps, but I'll take what I can get). We don't have GPS data for trains. For a given train, we can only say, "this train is between these two stations" or "this train is at this station." All the ideas I have for showing those two states on a map have been messy and kind of useless.

1. You need an API key from Marta to run this app. You can request one from Marta.
2. Set the MARTA_TRAIN_API_KEY environment variable to the key you received from Marta.
3. Run the App.

• While developing, you use grunt serve to start things up.
• When deploying to a hosting service, you use grunt build to generate a deployable version in the /dist directory, and then deploy the contents of that directory.

For example, after setting up a heroku app to deploy to heroku, I run:

• grunt build
• cd dist
• git commit [...]
• git remote add heroku [email protected]:your-heroku-app.git (if I haven't already run this)
• git push heroku master to deploy to Heroku.

I installed newrelic on this app today, to see how well it works for Node apps. If you're running your own and want to start reporting to newrelic, set the NEWRELIC_LICENSE_KEY environment variable to your newrelic key.