In response to recent increases in the utilization of 3D spaces situated below and above land
surfaces, both users and registrar increasingly demanding a reliable positioning infrastructure
for a cadastre. This paper discusses some challenges and requirements for establishing a
reliable positioning infrastructure to support 3D cadastre implementation in Indonesia. Since
three decades ago, ground survey marks (TDT) have been conventionally used for parcel
mapping and only have 2D coordinates. TDT can be used for 3D cadastre implementation by
assigning the TDT height to the national height datum. Surveyors can define the TDT height
by referring to the orthometric height pillars (TTG) or the Indonesian national geoid
(InaGeoid). These two references are sub-elements of the 2013 Indonesia Geospatial
Reference System (SRGI 2013), which since 2013 has been used as a reference for various
geospatial data nationally. 2D parcel mapping practices in Indonesia are still referring to the
previous reference system used by Indonesia, namely the 1995 National Geodetic Datum
(DGN95). This condition makes an integrated 3D survey to support first registration and right
transfers for 3D Cadastre is challenging. At the same time, a 3D validation survey for 3D
cadastre aiming to validate X,Y and Z coordinates of 3D parcels to be registered needs to be
done efficiently and accurately. This paper discusses challenges regarding coordinates shift,
inconsistencies between 2D and 3D parcels, missing height references and lack of coordinate
redefinition of GPS coordinate services. This paper will examine the 3D cadastral validation
survey results done in the Mass Rapid Transit (MRT) stations in Jakarta City and evaluate the
positioning infrastructure in Jogjakarta City where an MRT connecting the new airport to the
city centre will soon be built.
Level
Internasional
Status
Dokumen Karya
No
Judul
Tipe Dokumen
Aksi
1
The Role of Positioning Infrastructure and Mapping Surveys in 3D Cadastre Implementation for Mass Rapid Transport Infrastructures – Indonesia Case-Turnitin-min.pdf
