Electronic Terrain and Obstacle Data (eTOD)

eTOD by iNetra is a module that focuses on generating insights for the user based on ground survey data and high resolution satellite imagery using automated data handling and processing methods. It provides a comprehensive obstacle analysis for Obstacle Limiting Surfaces (OLS) and Area surfaces outlined by ICAO Doc Annex 14 Volume 1, Aerodrome Design and Operations - Edition 8, 2018. Main Features:

1. Automatic Generation of eTOD surfaces such as Areas and OLS - The eTOD module in iNetra requires only fundamental details of the airport to generate the surfaces such as Areas and OLS within the limits of the aerodrome. All Airports within eAIP can be automatically generated as per ICAO standards. An additional feature is the availability of 3D views of these surfaces.
2. Automated Obstacle Analysis - iNetra eTOD integrates with an Obstacle Analysis module that can automatically ingest obstacle data from the Data Management portal (Provided as a separate module) and identify the significant / penetrating obstacles from the list with respect to the surfaces generated. This information can also be viewed in 3D along with a list of obstacles such as position, vertical limits as per ICAO standards, penetration if any and the height of the object.
3. Input Terrain data for visualization - The eTOD module also provides the user to upload their own terrain data in the universally accepted raster (.tif files) format. Any grayscale raster file that is uploaded for the airport can be instantly color coded based on the terrain variations and visualized in the front end for the user to view. Additionally, one can also view the height value at each pixel in the terrain data by simply clicking on the terrain shown to the user.
4. User input based insights - All features mentioned above can also be generated for airports that lie outside the limits of the Indian Airspace and not under the Directorate General of Civil Aviation (DGCA). iNetra can ingest the data through user input to generate the surfaces as well as carry out obstacle analysis. This feature comes into use when the user would like to generate insights for new or planned airports where identification of obstacles and critical surfaces prior to construction becomes essential. The same can also be used in already operational airports where structural changes where the existing critical surfaces may be subject to change. (Ex: Extension of a Runway in an airport will affect the position and variation of the critical surfaces).