This thread isn't on JetBlast yet? That's amazing.
Anyway, wasn't the original post about two planes that nearly collided when taking off? So the phraseology of how to tell people to wait for a plane that is landing seems irrelevant.
For what it's worth, BOS Logan is built on landfill and salt flats in the Boston Harbor, and has to deal with noise abatement restrictions from the surrounding neighborhood. I seriously doubt that they could completely redesign the airport to avoid intersecting runways being used during takeoff to accommodate the traffic.
http://www.massport.com/logan/about_histo.html
[In 1994] The ultimate goal of the project was to increase Logan's efficiency without expanding the airport's borders or compromising on environmental benefits for its neighbors...
...Currently New England’s busiest airport, it ranks 19th nationally and 35th in the world, serving approximately 23 million passengers annually.
Obviously, several other airports around the globe face similar restrictions due to geography, weather, and the simple fact that airports are built in areas where people live and want to travel to, which implies there isn't a huge amount of vacant land available to design the perfect airport.
So isn't the question about how to do this safely? And what leads to human errors that make this difficult?
Edited to add that I don't think they had any idea that aviation would be so popular when they built the airport in 1922.