The largest collective transport system in Poland operates in the capital city of Warsaw. The system also comprises the country’s largest tram fleet, currently numbering around 530 vehicles belonging to the city operator, Warsaw Trams (Tramwaje Warszawskie). GMV, continuously since 2011, has been providing the carrier with IT solutions and Dynamic Passenger Information services.

The first project started in March 2011 and included the delivery of onboard geolocators for the entire tram fleet, 41 new PIS panels at the stops, the implementation of a new central Dynamic Passenger Information System (GMV’s SAE-R railway-fleet management software) as well as the inclusion of the existing 27 Gorba’s PIS panels at tram stops.

In subsequent years the system underwent extensions and major modifications. Among other things, the central software (SAE-R) was migrated by GMV to the carrier’s cloud service and open communication interfaces (APIs) developed by Warsaw Trams.

The latest investment by Warsaw Trams is a project to replace all onboard geolocators with new ones. Upon the award of a public contract, Warsaw Trams concluded with GMV the Contract for performance of the vehicle positioning service, calculating deviation as well as providing for data-display and -exchange in the delivered and installed equipment. GMV will equip 650 trams with sets of onboard equipment (the latest EP200), adding up to a total of 731 onboard sets taking into consideration bi-directional trams.

The new onboard computers will ensure the precise, GNSS-based positioning of the tram, calculation of deviation (late or early running) as well as wireless communication with the central systems of Warsaw Trams. On the 7-inch displays the driver will see the calculated deviation (which will make it possible for the tram driver himself/herself to control punctuality) and issue any messages, warnings, and recommendations from the Traffic Control Centre.

Real-time data on the location of each tram is fed into the Dynamic Passenger Information System, where the GMV’s SAE-R software estimates the vehicle’s times of arrival (ETA), which is then displayed on the tramstop panels and on the PIS website (https://tw.waw.pl/sip/). The position data is also used in the system for giving ride priority to trams at junctions (the so-called green wave).