What drones do construction sites use for progress monitoring?

Construction sites use RTK-enabled mapping drones for progress monitoring. Which one you need comes down to three things: the size of the site, how often you want to fly it, and what you need to measure. Those answers point to a compact drone like the DJI Mavic 3E, a mid-size Matrice 4E, a docked system, or a fixed-wing aircraft.