Alright, I'm back for a few....
PW100: I'll try to help answer some questions about DTW:
The crosswinds 9L/27R, 9R/27L are RARELY used. Honestly, I've never seen them in operation. The only time they will use them is when when a very strong east or west wind creates a crosswind component on the main parallel runways that exceeds limits. The occurance rarely happens, and when it doesn, not for a an extended period of time. The use of the crosswinds limits airport capacity, and actually for about a year 9L/27R was closed to build the new access road from the exisiting terminal down to the new terminal.. There is no plans whosoever to built another crosswindrunway. No room north as there are terminals, hangers, parking garages in the way, no room to the south either. The use of the crosswind runways is not the optimal use of the runway configuration.
21L/3R is used exclusively for landings
21R/3L is used exclusively for takeoffs
22L/4R is used for takeoffs (all heavies), heavy landings, and landings during light traffic
22R/4L is used for landings. Yes, three arrival paths can be used into the three runways mentioned for landings under good visibility, but weather can reduce this to two.
NW doesn't have 11 banks, it is actually has 9 currently, 10 last summer, but all of different magnitudes
Departure banks approximately include 6:30-7:00a, 8:30-9:30a, 10:30-11:00a, 12:00-12:30p, 1:30-2:00p, 3:00-3:30p, 5:00-5:30pm, 7:00-7:30pm, 8:30-9:30p, 10:30-11:00p (not reinstated yet)
The old terminal had:
C 26 gates, D 13 gates, E 12 gates, F 9 gates, G-commuter
Total of 60 mainline gates, plus commuter which were boarded in busses from G.
The new terminal approx. 64 mainline gates....but the new terminal allow for much better utilization. At the old terminal, the all but 2 ARJ's had to use mainline gates, here most will use the B-gates, and there is simply more space available for a/c to manuver. Yes, there is a planned expansion onto Concourse B. The area is currently fenced in and contains portable trailers and construction equipment. They are planned to expand in this area as they already installed drainage and did not pave in the area, instead leaving it as gravel since the concourse will be in this area. NW was to proceed with this, but 9-11 put a hold on this project. It will be necessary soon though.
There is no need to even think about expanding across the runways. There is plenty of expansion room on Concourse B. They have a whole half mile plus of length to expand to paralell Concourse A.
Yes, the old terminals will be torn down. Concourses D-G are being torn down, along with the end of C soon. Yes, the end of concourse C is about 5 years old and G is not much older, but they are being torn down. They aren't practical to save. The main check-in area in the Davey terminal will stay. In the interm, all other airlines will be in the Smith terminal A, B, C. Rebuild a linear 29 gate terminal similar to the midfield terminal and linear to the roadway & runways. Once this is complete ine approx. 2006-7, the Smith terminal & A, B, C will be torn down and the space will be for future expansion.
Well, I'm tired now....I'll write my opinion of the new terminal tomorrow. I flew in there last Friday and am flying out later on Monday...I'll write more later...