See How the 2nd Avenue Subway Will Help Your Commute

The first phase of New York’s Second Avenue subway is scheduled to open at the end of 2016, just a shade under a century since its conception. (If you bet the under on 100 years back in 1920 and have been sweating it out this whole time: congrats!) But if you can’t wait nine more months to see how the line will change your commute—or if you still doubt the project will actually be finished on time—then transit-app developer Citymapper has you covered.

Today the company is debuting a new beta navigation tool that lists the Second Avenue subway among its route options for trips that might one day involve the line. “The Second Avenue subway is one of the most infamous, for-so-long hypothetical lines,” says Joe Hughes, the head of mobile engineering for Citymapper. “Now that it’s finally on the horizon, we thought: What is this going to make possible?”