2 Actives at Barajas Madrid Default!!

Flew into Barajas Madrid (main airport) today and was shocked to see seperate runways active for arrivals and departures. And this in the default mode!I've downloaded the latest version of AFCAD, but still haven't executed it (Why is a long story). But anyway, I thought the default mode of MSFS 2K2 was the longest runway for both, end of story.But there it was, 2 actives simultaneous.Any comments regrading this discovery, or am I way too late and living in the dark ages?Rick