| 摘要 |
PROBLEM TO BE SOLVED: To provide a railroad signal system and a railroad signal control method capable of stopping the train when the large external force generating damages or the like on a structure is applied. SOLUTION: When the external force exceeding a predetermined value is applied to the damage detection place of the railroad structure, a second container in an external force response body 1 is broken, an inclusion body in it leaks and mixes, and electrolyte solution is generated. The red color lamp 62 of a ground signal 61 is turned on to display the stop signal by electrically short-circuiting two rails R1, R2 of the track circuit. COPYRIGHT: (C)2004,JPO
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