Topographic and geodetic works

Topographic and geodetic works are necessary to obtain precise, accurate and up-to-date information about the locality and its relief, existing objects, aboveground and underground utility lines, layout elements, improvements and landscaping, as well as for designing of construction facilities, designing and reconstruction of existing utility facilities and constructions.

Our company renders the full range of topographic and geodesic works for linear part of line pipelines, including:

• Development of geodetic control networks of various accuracy classes;
• GPS determination of coordinates;
• Development and (or) updating of utility geodetic plans within the scale of 1:100 – 1:5000, including in digital form, in the used coordinates system;
• Topographic survey of aboveground, underground constructions and utility lines;
• Topographic survey of reliefs of any complexity;
• Geodetic observations of deformations and yield of the building foundation, movements of land surface and dangerous natural processes;
• Tracing of line objects.

All topographic and geodetic works are performed by the certified specialists with the experience of such works applying modern geodetic equipment and the latest technologies.

Land cadastral works

Our company is experienced and licensed for provision of land cadastral works at production facilities (any stage of land parcel registration), the full range which includes:

• Works related to development of land surveying documents on allotment of new parcels and setting the boundaries of already existing land plots;
•  Collection and analysis of information on availability of land title documents for the gas transportation system facilities;
• Approval of the land parcel boundaries;
• Cadastral survey, topographic works for provide a cadastral basis;
• Setting the land plot boundaries with the boundary marks;
• Preparation and maintenance of land surveying documents in order to enter the land parcel data to the unified database of the State Land Cadaster;
• Staking boundaries of land plot boundaries for their more precise location on the site;
• Development of cadastral plan based on the information from the State Land Cadaster.

Works are carried out by highly-competent geodesists, land surveyors and map-makers with a large experience of performing the entire range of land surveying works and have relevant qualification certificates.

Engineering surveys

Comprehensive engineering surveys for various targets related to designing, reconstruction and building of commercial facilities include the range of topographic and geodetic works. Such works enable to retrieve information on natural and anthropogenic features of the territory, local relief, availability of utility lines, buildings and so on.

Based on engineering geodetic surveys, including geodetic, topographic, aerophotographic, stereophotogrammetric, cadastral and other special works, our company performs:

• Development of geodetic control networks;
• High precision satellite measurements;
• Large-scale surveys;
• Updating of topographic and utility topographic plans;
• Development of utility topographic plans, land cadastral plans, profiles and other topographic geodetic materials (in graphic, digital, photographic and other forms);
• Engineering and hydrographic surveys;
• Development and maintenance of corporate geoinformation systems (GIS);
• Linear surveys.

Digital cartographic materials creation

The initial data for creating and updating digital maps are catalogs of coordinates and altitudes of points of geodetic network, base stations and points imaging network (insignia), remote sensing, survey karmaterialy in the prospecting area. In the formation of the digital cartographic materials the complex of works, among which:

• Creation and adjustment of digital model of locality for engineering purposes, based on geodetic survey findings;
• Editing of existing cartographic materials using the modern remote sensing data, high-resolution space images;
• Formation of digital cartographic materials of various succeeding scales based on the developed digital model of locality: route maps of main pipeline corridor, large-scale plans, map boards, general plans;
• Preparation of digital cartographic materials for downloading to GIS of various purposes: reduction to unified layer-by-layer structure using the digital libraries of line types and conventional symbols.

Processing of remote sensing  data

Remote sensing data gained wide use as GIS resources, in particular images of land surface with the objects located on it or in the Earth's interior, obtained during the surveys with any remote methods. They are primarily obtained with ground-, air- or space-based survey instruments that allow for having images in one or several sections of electromagnetic specter.  To eliminate the geometric distortions in the images is performed transformation of remote sensing data.

Specialists of our company perform the following works with remote sensing data:

• Processing of remote sensing materials relating to land: aerophotographs and space images of high resolution made from various satellites;
• Processing of remote sensing data in PHOTOMOD program module:

1. Construction and phototriangulational station adjustment;
2. Construction of digital terrain models (DTM) and horizontals;
3. Creation of digital orthophotomaps;
4. Creation and updating of three-dimensional and two-dimensional digital maps of locality based on space and aerial survey.