The track circuit system monitors the free running of the track. The track circuit indicates the presence of a train on an isolated track section. The track circuit consists of an insulated track section, a voltage source and a relay winding.
The position and symbol shall be indicated for the track circuit.
The material covers railways owned by the Finnish Transport Agency.
The source system of the data is the track object management application (RATKO) of the Track Infrastructure Management System (RATKO).
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