There was an hour-long programme about 6-8 weeks ago on The Learning Channel that went in-depth on the contruction, operation, and functionality of Kansai (KIX). The planners did plan on the airport to sink somewhat, but they blundered on the calculations, and the airport is sinking much faster than was originally planned. The airport is sinking around its centre, which makes the runway sink in a broad "U". Most runway's have a slight "U" to it, but Kansai's centre has sunk more, so it makes landings harder, as it sends some planes in for a longer-than-planned landing. This is word from an Austrian Airlines pilot.
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