Drone photogrammetry has several unique advantages for environment, urban planning and architecture.

1. High-Quality Data: Drone photogrammetry can capture high-quality imagery of urban environments with a high level of detail, providing accurate data
2. Flexibility: Drones can easily access hard-to-reach or inaccessible areas, such as rooftops, alleys, and construction sites, providing a more comprehensive view of the urban environment.
3. Cost-Effective: Drone photogrammetry can be more cost-effective than traditional aerial photogrammetry, as drones are less expensive to operate and can be flown on demand.
4. Real-Time Data: Drone photogrammetry can provide real-time data on urban environments, allowing for faster decision-making and response times in emergency situations.
5. Safety: Drone photogrammetry can reduce the risk of accidents or injury associated with traditional methods of data collection, such as climbing or accessing hazardous areas.