<Anchor>



However, the apartment complex that suffered damage from the collapse of the retaining wall you just saw was classified as a safe area on the Forest Service's landslide risk map.



There are loopholes in the landslide prevention and management system, and reporter Kim Min-jun delivers the details.



<Reporter> This



is a real-time landslide risk map prepared by the Korea Forest Service.



According to the probability of occurrence of a landslide, the mountain area is divided into 5 grades.



This is the apartment complex in Dongjak-gu, where the retaining wall fell down this time.



As you can see, red means a relatively high risk of a landslide, and blue means relatively safe.



Dongjak-gu Office, a local government with jurisdiction, also designated this area as a 'slope site' and rated it as a B grade.



Of the five grades, the closer to Grade A, the safer it is, so the probability of a landslide is low.



However, a major landslide occurred without notice in a place where all agencies in charge were safe, and the damage was passed on to the residents.



Experts point out that landslide risk maps should become a disaster prevention system that reflects key variables such as man-made structures and real-time weather changes.



[Dr. Kim Hyung-min / Korean Society of Geotechnical Engineering: (Landslide) Man-made structures such as roads, retaining walls, and electric poles are swept down together, but the danger map focuses on natural factors, so it cannot include the collapse of artificial structures.]



There are also voices calling for the efficient integration of the landslide prevention and management system, which is intertwined with several agencies.



[Lee Soo-gon / Former Professor of Civil Engineering, University of Seoul: In Hong Kong, a landslide agency is established and the government actively conducts and manages it in an integrated manner.

Therefore, we should also do this in only a few places where landslides occur frequently (.)] As a



result of this heavy rain, loopholes in prevention of landslide risk areas, site inspections, and scientific response systems were exposed, so institutional improvement is needed.



(Video coverage: Park Jin-ho, video editing: Hwang Ji-young, CG: Choi Jae-young)



▶ Retaining walls in various parts of the city collapsed, the cause of which was 'poor drainage'