Aerial vs Ground Comparison

When a crossarm failure on an overhead distribution line occurred over a highway crossing, we were called in to inspect every other highway crossing with drones. Our results were then compared against a separate ground-based crew who inspected the same assets.

We were able to coordinate and synchronize a variety of Subject Matter Experts (SMEs), pilots, and analysts to complete the mission quickly. We completed a Complete Facility Assessment (CFA) capturing and analyzing 1634 total images, or 7-21 images per asset. 96 poles were inspected by both the aerial and ground teams, and upon analysis, many of the same conditions were found but classified differently.

Drone images are 12-20 mp from an ideal vantage point, so more details are displayed and provide a more accurate condition prioritization. 48% more conditions were identified by the aerial team than the ground team, and 4 high priority issues were only identified by the aerial team.

The data provided compelling evidence that aerial inspections are more complete and enable better prioritization of defects than ground-based inspections alone.

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