SUR/Specific/TBT-SUR-010
3D Scanning (LiDAR) Safety
Surveying & Setting Out › Specific › 3D Scanning (LiDAR) Safety
3D Scanning (LiDAR) Safety
Toolbox Talk Record
Ref: TBT-SUR-010 | Issue: 1 | Date: March 2026
| Presenter | Project | ||
| Location | Date |
What?
- LiDAR (Light Detection and Ranging) scanning creates detailed 3D models of structures, terrain, and excavations.
- Scanners emit laser pulses — most construction-grade units use Class 1 or Class 3R lasers.
- Class 3R lasers can cause eye injury if the beam is viewed directly at close range for extended periods.
- LiDAR scanning often requires the operator to position equipment in hazardous locations for optimal coverage.
- Scanning from height on scaffolds, rooftops, or elevated platforms introduces fall-from-height risks.
- Equipment is valuable and heavy — a typical scanner with tripod weighs 15–25 kg requiring careful handling.
- Scanning in live traffic areas, near excavations, or at rail sites requires location-specific risk controls.
- Survey targets and reference spheres placed around the scan area must not create trip hazards.
- Data processing does not need to happen on site — minimise time in hazardous locations by scanning efficiently.
- Battery-powered scanners eliminate trailing cable hazards but require charged spare batteries.
Why?
| Laser safety | Direct eye exposure to Class 3R laser beams can cause temporary or permanent retinal damage. |
| Hazardous locations | Achieving comprehensive scan coverage requires positioning equipment in areas with falls, traffic, or plant hazards. |
| Manual handling | Carrying heavy scanning equipment across uneven site terrain causes musculoskeletal injuries. |
| Do | Don't |
|
See also: Surveying Safety Awareness | Laser Level and Rotating Laser Safety |
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