CONSTRUCTION OF AUTOMATIC RAINFALL ALERT SYSTEM FOR RAILWAY DISASTER PREVENTION

초록

Heavy rainfall has given rise to track swept away, slope failure and bridge failure and has brought on the train accidents, its service suspension and delay. To predict and prevent these disasters by heavy rainfall, it needs constructing rainfall alert system and database system with data from the proper program and devices. However, Korea National Railroad (KNR) had operated only seventy rain gauges with data measured and transmitted manually and thus, it is impossible to predict risks and hazards for lack of both real-time transferring systems and accumulated rainfall data. Even though the data from Korea Meteorological Administration have been utilized until now, it has been insufficient to prepare for disasters by every local heavy rainfall because of long distances between rainfall gauges and railroad. This paper shows that the newly developed Automatic Rainfall Alert System indicating the local heavy rainfall and alarm threshold values for the safe train operation during the regular hours. The rainfall disaster prevention system was established on the basis of the automatic rainfall alert system.