MBTA and state officials today announced the release of real-time data on three of the system's four subway lines, along with plans to install monitors showing train and bus arrival info at every station where subways and buses connect.
Over the next several weeks, application developers who have already built smartphone and other apps for bus arrivals will use the new data for similar train-based services. At a ceremony at the Ruggles stop on the Orange Line, Catch the Bus builder Jared Egan showed off his upcoming Catch the T app.
MBTA General Manager Richard Davey said the Green Line was left out because, unlike the other three lines, buses and commuter rail, its trains do not have the sort of tracking systems in place to allow accurate predictions of when trains will arrive in a station. It's the same reason you don't hear "the next train to [wherever] is now approaching" announcements on the Green Line - the new real-time data is based on that announcement system for the other three lines.
Davey said real-time tracking of commuter rail trains could be just a few months away.
He added that monitors unwrapped today at Ruggles and Back Bay will eventually be joined by similar monitors at other key stations.