Topography

Digital topographic maps from DEM/DSM and LiDAR

Accurate topographic maps based on digital elevation models (DEM/DSM) for design and cadastral surveying.

We combine satellite imagery, LiDAR, total-station surveying, GNSS measurements and aerial photogrammetry.

Lead time: from 3 days Accuracy: < 15 cm Scale: 1:500–1:10,000 Formats: PDF, DWG, GeoTIFF, KML
Topography and digital elevation models
from 3 days Standard map preparation lead time (depending on area and site complexity).
< 15 cm Vertical error verified by control field measurements.
1:500–1:10,000 We work with different scales and detail levels to match the project task.

What is shown on the maps

Topographic materials are structured by thematic layers so design, cadastral and operations teams can work with the data without loss or manual re-tagging.

Relief

Contours at a defined interval, elevation marks, microrelief forms and a surface model for engineering calculations.

Hydrography

Rivers, lakes, streams, wetlands, hydraulic structures and water-protection infrastructure elements.

Vegetation

Forest stands, shrubs and grassland areas classified by type and density.

Utilities

Above- and below-ground networks: gas pipelines, water mains, cable lines, manholes, pumping stations.

Structures

Buildings, structures, bridges, overpasses and fencing with key parameters and intended use recorded.

Road network and boundaries

Roads and railways, ramps, trails, cadastral boundaries and zones with special land-use conditions.

Data, software and processing algorithms

Data sources

  • LiDAR scanning;
  • total-station surveying and GNSS measurements;
  • aerial photogrammetry;
  • high-resolution satellite imagery.

Integrating data from heterogeneous sources produces a continuous digital terrain model without accuracy gaps.

Tools

  • GIS: ArcGIS, QGIS, Panorama;
  • CAD: AutoCAD Civil 3D, CREDO, Revit, Renga, KOMPAS-3D;
  • elevation interpolation and contour generation algorithms;
  • accuracy control against ground control points.

Project delivery stages

1. Data capture

Collection of source data and agreement on the required map scale.

2. Data processing

Data integration and cleaning, georeferencing to the selected coordinate system.

3. Model building

Elevation interpolation and building a continuous surface model.

4. Material preparation

Formation of thematic layers and styling of conventional symbols.

5. Result handover

Quality control, release of the final package and delivery to the client.

Delivery formats and applications

  • Formats: PDF, DWG, GeoTIFF, KML, LAS/E57.
  • Design of buildings, roads and utility networks.
  • Cadastral and boundary survey work, registration.
  • Earthworks quantity takeoffs and cut-and-fill cartograms.
  • Documentation preparation for approvals and reviews.

Standards compliance

  • GOST R 59562-2021 “Digital topographic maps”.
  • SP 47.13330.2016 “Engineering surveys for construction”.
  • Requirements of the urban planning cadastre and supervisory authorities.

The design team receives data that can be used immediately in the working workflow without manual recalculation and repeat surveys.