Hi! I am an Indonesian mapper with a strong interest in mapping urban and intercity public transport. My contributions to OpenStreetMap focus on maintaining the complete public transport network of Bandung, including passenger infrastructure and street data. I also occasionally edit roads, land use, and other geographic features across Java Island.

I am currently active with Transport for Bandung, an organization that promotes the use of public transport in the Bandung Basin Metropolitan Area. However, while this account is affiliated with the organization, it is mostly used for personal mapping activities.

My major contributions in OpenStreetMap:

1. Updated Java railway network. A large portion of Java’s railway data in OSM was outdated and did not comply with OSM tagging scheme. This includes stations mapped as bus terminals, double track railways only mapped as single track, stations missing siding and switches, train routes almost nonexistent, incomplete railway max speed data, etc. At the same time, usage of this data, including one hosted by OpenRailwayMap, increased. With help from the railfan community, Java’s current railway data in OSM has greatly improved.
2. Mapped public transport routes and facilities in Bandung Basin Metropolitan Area. There are hundreds of public transport routes (buses, angkots, and trains) that needed updating. This also includes adding, fixing, and removing hundreds of bus stops to comply with OSM scheme.
3. Mapped Transjakarta bus network, including most non-BRT and some Mikrotrans routes. This also includes mapping and fixing 15 BRT corridor ways and bus stops which were abandoned in OSM.
4. Landuse data in some places, notably Bandung City and Kediri. This includes natural landuse in mountainous region, urban landuse, and rural landuse.
5. Street classification, naming, access tags, and geometry update, mostly in Bandung Basin area, Kediri, Surabaya, Malang, and Jakarta.