American Airlines Miami Hub Departures Snapshot: 21AUG14
As part of the merger between American Airlines and US Airways, legacy American Airlines (LAA) will transition its hubs from rolling hubs to banked hubs.
The rolling hub concept was first rolled out (pun intended) by American Airlines at the Chicago-O’Hare hub in 2002. It consists of spacing arrivals and departures more or less evenly throughout the day. This has the benefit of maximizing aircraft utilization while requiring less gate space and fewer staff. The big drawback is longer average connection times, since arrivals are not necessarily timed to connect with departures.
US Airways currently operates banked hubs, where several flights arrive around the same time, get turned around, and then depart at the same time. This reduces aircraft utilization—aircraft may have to wait longer at outstations before returning to the hub in order to arrive with a bank—and requires more gate space and greater staff, since more aircraft will be on the ground at the same time. However, connection times are generally shorter, which passengers prefer, and passenger flows are optimized to provide the maximum amount of connection opportunities.
For example, 10 flights might arrive from South America between 4 and 5 AM, and then 10 flights might depart to domestic destinations between 6 and 7 AM. This process basically repeats itself in alternating directions throughout the day. American Airlines uses its Miami hub to connect the United States, Canada, and Europe with Latin America and the Caribbean.
The Miami hub goes back to the days of Eastern Air Lines and Braniff International Airways, but that’s outside the scope of this post for now. What’s important is that Miami was the first hub to be “rebanked” on Tuesday, August 19th.
I was bored tonight, so I went through the online timetable and made a spreadsheet of the scheduled departures for tomorrow, Thursday, August 21st, excluding codeshare flights and charter flights to Cuba. This is a quick breakdown:
Miami International Airport (MIA)
298 departures, 12 banks
- First flight departs at 6:00 AM
- Last flight departs at 11:59 PM
- Biggest destination by frequency and capacity:
Dallas/Ft. Worth 10 flights, 1,772 seats
Departures by Operating Carrier
- American Airlines 226
- Envoy Air 55
- US Airways 17
Departures by Destination
- Domestic 186
- International 112
- Canada 5
- Caribbean 42
- Central America 22
- Europe 6
- South America 26
Departures by Aircraft Type
- Embraer ERJ 140 (44 seats) 10
- Embraer ERJ 145 (50 seats) 47
- Airbus A319 (124 seats) 8
- Airbus A320 (150 seats) 3
- Boeing 737-800 (150 seats) 143
- Airbus A321 (181 or 187 seats) 7
- Boeing 757-200 (176, 182, or 184 seats) 42
- Boeing 767-300 (209 or 218 seats) 18
- Boeing 777-200 (247 seats) 8
- Boeing 777-300ER (310 seats) 1
Video: Nick Offerman Recites Some Profound Shower Thoughts [gifs via]
Iggy Azalea and clam chowder
i love how tumblr is like OH DON’T MAKE FUN OF THE WAY PEOPLE LOOK THAT’S DISGUSTING AND LOW AS FUCK but then here we are lol
clam chowder is delicious
where is the insult
I can’t tell what my favorite part is, but it’s either
- scientists wasting budget and time to see if ants count their steps
- the idea to put ants on stilts
- there had to be a guy who made ant stilts and put them on the ants
- confused ants
Who’s going to be the first person to participate in the ALS cum bucket challenge
Press play and enjoy fuckers.
At first I’m just like “it’s fucking clapping, I don’t ca-” and then he began to sing and I took in such a deep breath my uncle had to make sure I was ok.
GOOD BYE FRIENDS I AM GONE
If you don’t reblog an acoustic version of My Songs Know What You Did In The Dark (Light ‘Em Up), something is wrong with you.