The five sub-districts in Jakarta are Bidara Cina, Kampung Pulo, Ulu Jami, Rawa Buaya, and Petogogan, which are prone to flooding due to their proximity to the Ciliwung River, Pesangrahan River, and Krukut River, which overflow their banks during every rainy season.
According to Endang, the sirens will be monitored by the BPBD officers. Once the officers receive any information regarding the overflowing waters of the aforementioned three rivers, they would switch on the sirens to warn the local people about the impending flood.
"When the sirens are on, the local people must prepare for evacuation," Endang affirmed.
He noted that the installation of the 15 sirens will be completed before January 2015 or prior to the peak of the rainy season in Indonesia, which usually falls between December and January.
(Reporting by Helti Marini Sipayung/translating and editing by Amie Fenia Arimbi/INE/KR-BSR/H-YH)