GTFS Realtime
GTFS Realtime is an open data specification that enables public transit agencies to provide real-time information about their services, such as vehicle locations, arrival predictions, service alerts, and trip updates. It extends the static GTFS (General Transit Feed Specification) format by adding dynamic data streams, allowing applications to display live transit information to users. This specification is widely used in transit apps, trip planners, and operational systems to improve passenger experience and agency efficiency.
Developers should learn GTFS Realtime when building applications that require live transit data, such as real-time tracking apps, trip planners with delay alerts, or agency dashboards for monitoring service performance. It is essential for integrating with public transit systems in smart cities, mobility-as-a-service platforms, and transportation analytics tools, as it provides a standardized way to access and process real-time transit information across different agencies and regions.