Service index indicator of polder system with retention pond using PCA method

Abstract

Indonesia as an archipelago country with 2nd longest coastal line in the world mostly has routine disaster such as flood. Jakarta as capital and economic center of Indonesia has flooding problem every year. To minimalize the impact, the government of DKI Jakarta already constructed 36 polder systems since 1973. In the future there are 11 polders planned to construct. Those 36 built up polders need maintenance to keep its function. Budgeting system of polder’s maintenance cost not yet available, so to allocating budget for polder’s maintenance based on previous amount and it found ineffective. This research analyzes indicators that can be used for indexing the service of polders as an initial research. As an object of this research, 8 polders in DKI Jakarta are chosen, they are Polder Grogol, Polder Teluk Gong, Polder Melati, Polder West Setiabudi, Polder South Sunter, Polder Tomang, Polder North Sunter, and Polder Pulomas. Probably indicator affecting polder’s capacity analyze using Principal Component Analysis (PCA) and resulted there are 24 indicators that can be used for analyzing polder system service level. Those indicators are separated into 2 aspects, technical and non-technical aspects.