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Real-Time Information
Dynamic information system keeps passengers informed of current tram and bus departure times.
After completing installment of the Dynamic Advice and
Information System (DAISY) throughout the Berlin metro system on 20
August 2003, the BVG is now introducing the system to its bus and
tram stops as well.
The goal of the DAISY project is to provide passengers with the
latest tram and bus departure times on a continuous basis -
immediately, comprehensively, and reliably. This includes not only
standard operations but also information about interruptions to the
service or unusual events.
DAISY is based on a computerized control system known as RBL
(Rechnergestütztes Betriebsleitsystem), which has been
progressively incorporated in the tram and bus systems over the
past few years and is now running at full operational levels. RBL
generates the real-time information on vehicle positions and
schedules needed to provide passengers with a dynamic information
service. Like the metro, the tram and bus stops now also display
actual and ongoing departure times.
RBL compares schedules with incoming data
RBL compares and updates schedules with real-time data on vehicle
positions. The locational data is registered and transmitted at
regular intervals by positioning beacons or axle meters for the
trams, and GPS technology for the buses.
