Just to clear up, air traffic control is condicted with the following three objectives listed in order of importance.
1. Safety
2. Order
3. Expedition
Safety
always comes first and an aircraft will
never be put in danger in order to achieve expedition. If we were caught doing such a thing we could lose our licence in the blink of an eye - it just isn't worth it.
One of the best skills a controller can have is keeping expedition to an absolute maximum whilst keeping all safety margins in place. However, as humans, we do make mistakes and in an attempt to keep expedition up we do sometimes cut the safety margins a bit too fine. This can be quite serious but the margins allow for so much that it rarely causes any major incidents.
Mistakes are made and due to the massive volume of traffic into and out of Heathrow and the pressure on controllers to keep delays to an absolute minimum, these seem to have been happening a bit more often than usual of recent. Heathrow operates at 100% capacity for most of the day and the smallest of hiccups can send delays spiralling into the hours. Heathrow cannot accommodate much more traffic at all, if any. A third runway is needed in order to allow necessary and inevitable expansion to progress safely.
The problem that the media were reporting is being addressed and I cannot make it clear enough that they are as always blowing the whole thing out of proportion.
In other words, it's no biggie
