LiDAR (Light Detection and Ranging) mapping

 
LiDAR (Light Detection and Ranging) mapping is an active remote sensing technology that uses rapid laser pulses to generate precise, 3D representations of landscapes, structures, and objects. By measuring the time-of-flight of light, it creates dense point clouds that provide highly accurate digital elevation models (DEMs), digital surface models (DSMs), and 3D maps used for engineering, navigation, and environmental analysis

Standar Nasional Indonesia (SNI)terkait LiDAR yang utama meliputi SNI 9135-2:2023 tentang pengolahan data geospasial, SNI 8202:2019 tentang ketelitian peta dasar yang digunakan untuk uji akurasi DTM LiDAR, serta berbagai pedoman teknis dari Badan Informasi Geospasial (BIG) dan prosedur survei udara/darat

Detail SNI dan Pedoman terkait LiDAR:

SNI 9135-2:2023 Pengolahan Data Geospasial: Mengatur spesifikasi pengolahan data, mencakup kemampuan pengolahan, serta pengelolaan blok dan subblok yang bertampalan.

SNI 8202:2019 Ketelitian Peta Dasar: Menjadi standar acuan untuk menguji nilai RMSE (Root Mean Square Error), LE90, dan LE95 pada Digital Terrain Model (DTM) hasil LiDAR.

Pedoman Teknis BIG: Peraturan BIG (seperti Peraturan BIG Nomor 11 Tahun 2018) mengatur faktor produktivitas dalam akuisisi data LiDAR serta perapatan titik kontrol.

SNI 4726: Pedoman Pelaporan: Digunakan dalam prosedur pemetaan metode LiDAR untuk eksplorasi sumber daya. 

Selain SNI, acuan teknis lain sering kali merujuk pada standar internasional seperti ASPRS 2014 untuk akurasi data LiDAR

 From Google ;

LiDAR mapping according to SNI (Standar Nasional Indonesia) standards is typically performed by professional geospatial service providers, licensed surveyors, and government bodies authorized by the Geospatial Information Agency (BIG - Badan Informasi Geospasial). Specifically, they must adhere to SNI 9135-2:2023, which regulates the processing of large-scale geospatial data acquired via unmanned aerial vehicles (UAV) using LiDAR. 

Key entities capable of providing these services include:

  • Certified Geospatial Companies: Private firms specializing in surveying and mapping that employ certified geospatial information personnel. Many utilize UAV LiDAR for high-precision 1:1,000 class 1 base maps.
  • Licensed Surveyors: Professionals registered with the Indonesian Surveyors Association (ISI) who have the technical competence to ensure data quality meets the accuracy requirements of the National Spatial Data Infrastructure (NSDI).
  • Government Agencies:
    • Badan Informasi Geospasial (BIG): The primary authority for basic geospatial information and the establishment of "One Map" standards.
    • Ministry of Public Works (PUPR): Uses laser scanning technology for road construction management, investigation, and maintenance following sectoral guidelines. 

Compliance Standards

For a project to be "according to SNI," the provider must follow:

  • SNI 9135-2:2023: Specific to large-scale LiDAR data processing from UAVs.
  • SNI Classification Schemes: Used for detailed land cover mapping and ensuring data interoperability across government platforms. 

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