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Ministry of Land, Infrastructure and Transport is creating a dedicated communication network that allows the engineer and the control center to share real-time on-site situations through video calls when there is a problem with the train. However, the frequency overlaps with the disaster communication network installed by the Ministry of Public Administration and Security, so it is being eaten everywhere.



Reporter Hoon-Kyung Jang reported.



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LTE-R base stations were installed every 1km along the railway between Daegwallyeong and Namgangneung on the KTX Gangneung Line.



It is a communication network that enables real-time video calls from trains to the control center even at speeds exceeding 350 km/h.



The engineer and the controller communicate the situation of the accident site, such as an emergency, through this device.



Currently, it has been built on a 310km railroad section across the country, including the Gangneung Line and the Jungang Line, but recently, communication has been cut off in six places.



In March, the Ministry of Public Administration and Security spent 1.4 trillion won to install a disaster safety communication network base station that is used by the police and firefighters.



The Ministry of Land, Infrastructure and Transport is promoting a Korean-style signal system that controls train operation and signals through this network, but 11 radio interference sections were identified in the Jeolla Line, a pilot project section, and related work was halted altogether.



[Yang Young-min / National Railroad Corporation Communications Manager: You are not aware of the surrounding situation at all, in the control system. When the train control system is introduced, the train may stop (suddenly) due to radio interference.]



As a matter of urgency, the Ministry of Public Administration and Security decided to move two of the six base stations that had problems at a cost of tens of millions of won, but the future is bigger.



If LTE-R is added to the entire railway line close to 4,000 km, the problem section will inevitably increase.



[An official from the Ministry of Public Administration and Security: (Our department) is in a position where there is no choice but to relocate the base station.

The train is stopping, because you're talking about it.

There are a lot of difficulties in unraveling...

.]



[Honggiwon / Democrats (upper parliamentary Homeland): If closely had a consultation in advance of budget waste Toka, or would have been able to be resolved safety concerns due to interference]



neglected to budget waste and even consultations between the basic Buddha It is pointed out that it is inevitable.



(Video coverage: Lee Yong-Yeon Lee Chan-soo, video editing: Lee Seung-jin)