Nearly a dozen small teams launched projects dedicated to improving SEPTA service during the second annual Apps for SEPTA hackathon earlier this month.

The event, hosted by Devnuts in Northern Liberties and in partnership with the transit agency, introduced a variety of applications, including one featuring an interactive way to browse transit lines, a simulator for SEPTA staff to test changes in train and bus schedules and a Foursquare app that allows users to see upcoming trains as soon as they check-in to a station.