Cut Slope Management System in Korea

CSMS was launched in 1998. Before CSMS, the maintenance was carried out after a landslide and the Korean government had experienced a national burden due to the unexpected use of the related cost. The ultimate objective of CSMS is an establishment of appropriate mitigation strategy about the dangerous slopes throughout proactive management system by experts. The CSMS team conducted a basic survey of all slopes alongside national highway and this data was indicated on a map based on GIS. The data can also be viewed through webpage and smart application. To check the past data and to modify data are available using the smart app. We have developed new methods and standards for determining the method of countermeasure. Korean government has reduced the budget of preventing landslides by 30 percent every year through the CSMS project. It also operates real-time monitoring system of sites where it is difficult to apply the countermeasure method. Currently, various sensors are being introduced to enhance the monitoring and the drone are used to survey inaccessible upper natural slope part. There are total 30,685 cut slope on national highway in Korea. Korean government has mitigated 7,489 dangerous slopes by CSMS. Even if the annual average of the failure is 47.3, large landslide is certainly decreased not more than 10 times since 2008. These results show that the CSMS project is effective. Acknowledgments This work is supported by the Korea Agency for Infrastructure Technology Advancement(KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 19SCIP-C146569-02).