Our company conducts the collection of electronic Terrain and Obstacle Data (eTOD) in accordance with the regulations defined in ICAO Annex 15. We execute comprehensive data collection in compliance with specific requirements and coverage areas (Area 1, Area 2a, 2b, 2c, Area 3, and Area 4), within the designated territories as well as inside the airport’s internal security zone, utilizing both aerial and terrestrial geodetic surveying methods.
Our Services
eTOD Data Collection and Surveying
- Collection of electronic terrain data (Terrain Data)
- Collection of electronic obstacle data (Obstacle Data)
- Survey and documentation of newly identified obstacles
- Data maintenance, updating, and change management
- Editing AOC and other relevant charts
- Airport GIS system
Using modern GNSS technologies, geodetic surveying equipment, UAV/drone solutions, and aerial photogrammetry, we ensure compliance with the accuracy and quality requirements specified by international aviation standards.
ICAO Annex 15 Area Surveys
Area 1
Collection of terrain and obstacle data for large geographical regions relevant to international air navigation and aeronautical information services.
Areas 2a, 2b and 2c
Detailed surveying of terrain and obstacles within the airport vicinity that may affect departure, arrival, and instrument approach procedures, supporting safe flight operations.
Area 3
High-accuracy surveying of airport movement areas and their immediate surroundings, providing essential data for airport mapping, operational planning, and aeronautical information management.
Area 4
Detailed, high-resolution surveys of runways and associated critical operational areas to support advanced navigation systems and modern flight management applications.
Data Processing and Quality Assurance
Collected data are processed, verified, and validated in accordance with international aviation standards. Our quality assurance procedures ensure data accuracy, completeness, consistency, and suitability for use in aeronautical publications, digital airport mapping, and navigation databases.
Key Benefits
- Compliance with ICAO Annex 15 and EASA requirements
- High-accuracy geodetic and aerial surveying technologies
- Complete data collection, processing, and validation services
- Support for regulatory compliance and aviation safety objectives
- Reliable digital datasets for air navigation and airport operations