Mr. Declan Fitzpatrick:

Again, our requirement is a divergence of 30°. How this divergence is made up, and whether it is straight ahead to the north, 30° in the south or 15° in both directions, is really not for us to say. I would assume in the analysis done that if there was a deviation of 30° off the southern runway it would certainly mean heading towards the military airspace. It might also mean going over more populated areas. I honestly do not know the criteria that led to this approach being selected. I am sure considerations such as these, however, certainly came into the analysis.