What is the separation distance for parallel runways considered the same runway for a B757?

The separation distance for parallel runways to be considered the same runway for a Boeing 757 is 700 feet. This standard is important for operational safety and efficiency during takeoff and landing procedures. When runways are spaced less than this specified distance, they may be treated as a single runway concerning separation standards, which affects how aircraft are sequenced for departures and arrivals.

This distance ensures there is enough lateral separation between aircraft operating on parallel runways, so pilots can maintain visual separation and air traffic controllers can manage spacing between aircraft effectively. If the separation were narrower, there would be increased risks associated with wake turbulence and other factors affecting safety. This standard plays a crucial role in how air traffic is managed at busy airports, particularly for large aircraft like the B757, which requires careful consideration of their operational characteristics.