Site Mapping & Survey Data in Townsville 

Smarter Data Capture

More Than Progress Photos

The same site visit can also be used to collect detailed photogrammetry or LiDAR data, helping clients gain substantially more value from each mobilisation.

Depending on the project requirements, site conditions, accuracy controls and processing scope, available geospatial deliverables can include:

• high-resolution orthomosaic maps
• georeferenced aerial imagery
• current-site base maps
• RGB point clouds
• dense photogrammetric point clouds
• classified point clouds
• ground and non-ground point classifications
• digital surface models
• digital terrain models
• digital elevation models
• triangulated terrain surfaces
• textured 3D models
• 3D reality models
• Gaussian-splat visualisations
• contour mapping
• spot heights and elevation data
• longitudinal and cross-sectional profiles
• slope and gradient analysis
• cut-and-fill calculations
• stockpile and material-volume calculations
• excavation and embankment measurements
• site-change and surface-change analysis
• before-and-after comparisons
• construction-stage comparisons
• as-built condition capture
• design-to-current-surface comparisons
• highwall, batter and embankment models
• drainage and surface-flow visualisation
• corridor and linear-infrastructure mapping
• façade, structure and vertical-surface modelling
• measurements of distances, areas, heights and volumes
• CAD, GIS and point-cloud data exports for compatible client software
• web-viewable 2D and 3D project models
• annotated maps and project reporting imagery

Modern photogrammetry systems can generate orthomosaics, point clouds, elevation models and detailed 3D reconstructions.

One Capture Program, Multiple Uses

A structured data-capture program allows one flight to support multiple departments and project requirements.

For example, the same dataset may provide:

• progress imagery for project reporting
• an updated orthomosaic for planning meetings
• point-cloud data for engineering or design review
• stockpile volumes for commercial reporting
• elevation information for earthworks assessment
• 3D models for stakeholder communication
• high-resolution marketing imagery for project promotion

This reduces duplicated site visits and helps create a consistent source of visual and spatial information across the project.

Repeated mapping missions can also be aligned over time, allowing successive datasets to be compared against earlier captures. This creates a measurable record of earthworks, construction activity, stockpile movement, vegetation clearing and changes to site conditions.

Accuracy Matched to the Project

Deliverables can be produced using RTK positioning, surveyed ground control, checkpoints or client-provided survey control, depending on the required accuracy and intended use.

Accuracy is influenced by factors including:

• flight altitude and ground sampling distance
• terrain and vegetation
• survey-control quality
• satellite and positioning conditions
• camera or sensor configuration
• processing methodology
• coordinate system and datum requirements
• the final purpose of the data

High-accuracy aerial systems can support centimetre-level geospatial data capture under suitable operating and control conditions. However, accuracy should always be specified for the individual project rather than assumed from the equipment alone.

Survey and Engineering Support

UAScend can provide aerial data capture and processed geospatial deliverables for use by project managers, engineers, civil contractors, mining teams, environmental consultants and survey professionals.

Where a project requires legally certified property boundaries, cadastral plans or other regulated cadastral surveying services, the work must be completed or certified by an appropriately registered cadastral surveyor in Queensland. UAScend can collect supporting aerial data and work alongside the client’s appointed survey professional where required.