On-board device for train control system

An on-board device mounted on a train to control the train based on train control information received from ground-side equipment, comprising:

• a first receiving unit configured to receive a first signal including train control information from first ground-side equipment installed along a route of the train;
• a second receiving unit configured to receive a second signal differing in kind from the first signal and including train control information from second ground-side equipment installed along the route;
• a first control unit configured to control the train based on the train control information included in the first signal;
• a second control unit configured to control the train based on the train control information included in the second signal;
• a selection unit configured to select the first control unit or the second control unit,
• a third receiving unit configured to receive a switching signal sent from third ground-side equipment installed near a border between a first zone in which the first ground-side equipment are installed and a second zone in which the second ground-side equipment are installed,
• wherein the selection unit is configured to select from control of the train by the first control unit to control of the train by the second control unit based on the switching signal received by the third receiving unit.