For most people in Jakarta, probably January is one of the busiest month, because in the next 3 months, flooding usually comes. Not only the communities are so busy to cope and protect themselves from flooding, local government such as Regional Disaster Management Agency (Badan Penanggulangan Bencana Daerah / BPBD) of DKI Jakarta, also actively ran many activities to manage the flood. Last month, in February, in partnership with Humanitarian OpenStreetMap Team (HOT) Indonesia and Disaster Management Innovation (DM Innovation), BPBD DKI Jakarta ran a GIS training for their Operation Control Center (Pusat Pengendali Operasi / Pusdalops). This three-days training (1-3 of February) was held in DM Innovation Office, aimed to introduce the use of OSM, QGIS, and InaSAFE in general, and specifically to support Jakarta’s flood response.
Through this training, the participants were able to understand that OSM data can be used as exposure data to estimate how many buildings, public facilities, and roads that might be affected by flooding. However, the real number of how many (and what are) buildings, public facilities, and roads are affected need to be confirmed by field surveys. In this case, OSM data serve as preliminary assessment to help BPBD estimate the impact (using QGIS and InaSAFE) of a flood event to public facilities and road network, then the government also be able to prepare things to cover / support public services during the flood.
In addition to OSM data; QGIS and InaSAFE also combined with demographic data in raster format, such as WorldPop, to estimate the number of people might be affected and / or need to be evacuated due to flooding. And once the number of people affected had been known, the government will be easier to estimate logistics and evacuation (if evacuation is needed) needs and budget, because those are had been calculated by InaSAFE in a more scientific methodologies and realistic number.
Besides floods, InaSAFE also could be used to estimate the impact of tsunami, earthquakes, volcanic eruptions, and landslides.