PMDGpilot From United States of America, joined Nov 2006, 17 posts, RR: 0 Reply 1, posted (6 years 12 months 22 hours ago) and read 14900 times:
AFCAD isn't as complicated to use if you use it to modify existing airports but as for making new one's, it doesn't do much. I heard that the new version would make it very easy to actually build an airport from scratch. Of course that was maybe two years ago. Other than that, sorry, I don't know of anything out there.