PROXYBridge, Road and Railway Inspection by Drone
Inspecting a bridge or railway section traditionally requires traffic closure. The drone completely eliminates this need — inspecting the structure from all angles without stopping traffic, generating 3D models with millimeter precision. Cost: just 300 RON/km.
How it works
The drone photographs the structure from hundreds of angles, including under the deck (for bridges). Photogrammetry software generates a textured 3D model where every crack, corrosion, or deformation is measurable. Comparison between successive inspections reveals deterioration evolution over time.
Comparison
| Criteria | Drone | Traditional manual inspection |
|---|---|---|
| Cost per km of road | 300 RON | 1,000-2,000 RON |
| Traffic closure | No | Yes — hours/days |
| 3D model | Yes — mm precision | No |
| Under-deck access (bridge) | Yes | Requires special platform |
| Safety | Zero human risk | High risk |
Economic analysis
Bridge inspection cost (100 m):
When you need this
Drone inspection is needed in the following cases:
- Periodic inspection — per CESTRIN/CNAIR regulations
- Post-disaster — structural integrity assessment
- Rehabilitation projects — existing condition documentation
Why ProxyDrone
Operators with flight authorization in restricted zones, experienced in transport infrastructure inspection.
Frequently Asked Questions
Can a bridge be inspected without closing traffic?
Yes. The drone flies independently of traffic, inspecting the structure from all angles — including under the deck — without any traffic restrictions.
How much does bridge inspection by drone cost?
The rate for a 100 m bridge is approximately 3,000 RON, including flight and 3D model. For roads, the cost is 300 RON/km.
What precision does the generated 3D model have?
The 3D model has millimeter precision, sufficient to measure cracks, deformations, and deterioration evolution between successive inspections.
Are reports accepted by CESTRIN/CNAIR?
Yes. Our reports include all data required by current regulations, with georeferenced 3D models and complete photographic documentation.