Yureidas
UrEDAS (UrEDAS) is an earthquake warning system developed by the National Railway Institute of Railway Technology (later Railway Comprehensive Technology Research Institute). The name is the initial letter of the early earthquake detection warning system (earthquake early detection warning system, Urgent Earthquake Detection and Alarm System). It is a safety management system for issuing an alarm immediately upon an earthquake to minimize the damage. There were Japanese Shinkansen, including the Tokaido Shinkansen, as subjects of operation. ...