DTM:
The digital terrain model is the basic tool for the planning of radio signal. DTM, as well as other data, serve for the prognosis of signal broadcast. Terrain obstructions, like embankments, have a serious impact on the signal broadcast. Surely you can remember how your cell phone has lost its signal while travelling on highways. Geodis Brno offers a new generation of digital terrain models with high resolution, which includes all of these aspects of impact on the signal. Stereoplotting from aerinal images more and more replaces topographical maps and satellite images, not only for DTM production, but also for the creation of other databases.
Building models:
The planning of the radio signal principally focuses on built-up areas. Today, elements like the type of built-up area, individual building, their relative and absolute height, distance to the abutting building, the type of development, etc. are implemented in the mapping of the building model. Bridges, detailed vegetation and other elements are mapped out as well.
Stereoplotting is the main method for city mapping, which involves surveying the contour of a building with its absolute heigth. With the aid of GIS application tools after manual editation and topological rectifications, their relative heights are calculated on the basis of DTM analysis and the absolute heigth of the building. In combination with other data, the final building model is then created. But it’s not only a 2D or 3D vector map that is created. In densely built-up areas, tools for creating building blocks are used in order to adhere to the rules of correct building appearance. That is why we devote many of our resources to technological development in an effort to retain the capability of accepting new calls.
Landuse
Landuse/Landcover is not developing itself that rapidly. More than the data structure of LandUse it’s the quality of the map documentation that is developing. Thanks to the long tradition of mapping of the Czech and Slovak Republics, we have managed to gather a large registry of our own data for the composition of Landuse of thematic layers and that is why we more focus on the update of these data via our own existing orthophothomaps than to new mappings. Apart from that LandUse data is not only used for the planning of a mobile operator network, but also for other types of GIS projects. Thanks to our experience from abroad, eg. Great Britain or Bangladesh, we have enough knowledge of how to put local and world data to use for the creation of a data model based on the requirements of the client.
What do we offer
- use digital terrain and surface models for modelling of signal broadcast throught the area,
- 3D vector data and models will help you with the decision where to put necessary objects like towers or antennas in the terrain,
- use data for land-use planning.
