To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed. Of the two strategies – avoiding congested airports and avoiding con-gested flight levels – it is the former which is more successful. Figure 27 shows that in 2005 scheduled traffic had a roughly even split between ATFCM delays because of airport capacity and due to capaci-ty issues in en route airspace. Business aviation, on the other hand, had proportionately more en route delays. As section 13 reported, this is in part because the highest flight levels, which were previously used predominantly by business aviation, are increasingly being used by scheduled traffic.
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