When landing on a runway where another large airplane is departing, what is the safest approach?

Selecting to land before where the large aircraft rotates is the safest approach when landing on a runway where another large airplane is departing. This choice minimizes the risk associated with potential wake turbulence, which can be generated by larger aircraft during takeoff and landing phases.

When an airplane rotates, it generates vortices that can persist in the air for some time and can be hazardous to smaller aircraft if they encounter them. By landing before the rotation point, you ensure that your flight path is clear of these turbulent air currents, reducing the chances of encountering disturbances that could affect the stability of your landing.

In contrast, maintaining the same altitude throughout the landing doesn't address the concerns about turbulence and might lead to an unstable approach. Landing immediately after the large aircraft rotates exposes you to the same risks posed by its wake. Performing a go-around might indeed be a safe choice in certain situations, but if the approach is stable and conditions are manageable, landing before the rotation point is a more effective proactive measure to ensure safety.