Railway system is one of the important infrastructure networks in Malaysia serving as passenger commuter and freight transport. The total length of the railway network covered the whole Peninsular Malaysia is about 1,600km and is operating by Keretapi Tanah Melayu Berhad (KTMB) that wholly owned by the Malaysian government. In early of 2009, KTMB reported that the train services were disrupted several times due to shallow slope failure along the railway track near Bukit Berapit in Taiping, Perak. The shallow slope failure consists of surficial soil erosion and falling of loose rocks from the slope (average size about 0.5m in diameter) into the railway track. Total height of the slope was approximately 25m, with problematic stretch more than 250m in length.