Drone surveys employ unmanned aerial vehicles (UAVs) equipped with high-resolution cameras and sensors to capture aerial imagery of sites. This method offers several advantages:

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• Efficiency: Drones can survey large areas quickly, reducing the time required compared to traditional methods.​

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• Accuracy: They provide detailed and precise data, enabling the creation of accurate maps and 3D models.​

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• Safety: By minimizing the need for personnel to access hazardous or difficult terrains, drones enhance safety on-site.​