But that's _my_ interest right now :-) That's because I ask for
suggestions and ideas here.
What ever approach we come up with needs to be done in a way that doesn't invalidate all your efforts the next time we regenerate the world scenery or the next time Robin Peel comes out with a new airport and taxiway data set.
I like to think about things "algorithmically", but I know that others prefer to do manual touchups because you can build in so much more detail and correctness that way. Some how we need to figure out how to bridge this divide and make it easy for people to be able to do manual changes to the airports if they like while still maintaining our ability to algorithmically regenerate the world when ever some new revision of one of our data sets is released.