Drone survey

An orthomosaic combines many overlapping drone photographs into one geometrically corrected, map-accurate image of the full survey area. Unlike a normal aerial photograph, it can be measured and aligned with project coordinates. Your team can use it to review current site conditions, mark features, compare survey dates and provide a clear visual base for CAD, GIS, planning and progress discussions.

Surface models turn the captured survey data into a continuous digital representation of site height. A DSM includes visible features such as buildings, vegetation and equipment, while a DTM represents the underlying ground where it can be reliably determined. These models support drainage review, slope assessment, earthwork planning, line-of-sight checks and the preparation of contours, profiles and other engineering information.

Elevation products translate the surveyed terrain into familiar levels that design and site teams can read quickly. Contours show how height changes across the project, while spot levels record elevations at selected locations. They help teams understand slopes, high and low points, access conditions and possible drainage paths, and can be supplied in formats that fit existing CAD or GIS workflows.

Spatial layers organise mapped features into separate, usable themes such as boundaries, roads, structures, drainage, utilities or survey observations. Each layer retains its project location and can include useful attributes. Delivering the information in DXF, SHP or KML allows engineering, GIS and planning teams to open the same survey evidence in their preferred software without rebuilding the data from an image.

Three-dimensional data preserves the surveyed site's shape as a point cloud or textured model. It allows users to inspect terrain and visible structures from different viewpoints, take supported measurements and understand complex areas that are difficult to communicate on a flat map. LAS and LAZ files support specialist point-cloud software, while a textured model offers an accessible visual record for review and coordination.

The mission record explains how the drone survey was planned and completed. It summarises the survey extent, capture date, equipment, positioning approach, site conditions, quality checks and delivered files. This gives future users important context about where the information came from and how it should be used, while providing the project team with a traceable reference for repeat surveys and later comparisons.