One of the constants in The New Stadium forum is the regular posting of various NFL/Major League Baseball stadia and eulogising over how amazing they are. Personally, I find it to be a pointless exercise for a number of reasons as follows:
1. The difference in the games themselves. Baseball is obviously completely different but NFL games are also fundamentally different in the nature of the experience. It's a game played up and down the field, always re-centred to the middle of the pitch. It's a linear game not an expansive game played across the pitch in the way that football is and most NFL seating is focussed on the long sides of the field.
Typical NFL field:
That's why you get roof structures like the Dallas Cowboy ground (HKS-designed), or the Lucas Oil stadium (HKS-designed) with their massive linear trusses emphasising the length of the field. And that's why HKS did the same for their design for Stanley Park - that's what they understand.
2. The duration of the games and breaks in play. A nine-inning baseball games lasts around 3 hours with breaks between each inning. A (60-minute) NFL game lasts about 3 hours 20 minutes (longer for bigger games with more TV timeouts). A (90-minute) football match has two continuous 45-minute periods of play with a fifteen-minute break half-time and lasts a little under 2 hours. This has a massive impact on the provision of catering, toilets and the design of the concourses etc. At and NFL game or a baseball game it's not unusual to leave your seat during the game and to be able to see the game from the concourses. That makes no sense at a football match and would ruin the atmosphere.
Here's a view of an open concourse at the Lucas Oil Stadium:
Again - the HKS design proposed similar areas including behind the Kop, in the corners and the length of the East Stand. Perfect for an NFL game but pointless for football.
3. Outside the ground, pre-game and post-game. Most NFL stadia have large parking lots next to the ground and tailgating is part of the pre-game experience. While having a few tins on the Sandon Wall may be seen as its distant cousin, the pre-game and post-game pint (or two) in a pub is what most of us traditionally expect and enjoy.
There are more but that should do for a start. NFL stadia look superficially similar because they are large grounds (60-90,000) based around a rectangular pitch, with a range of ticket prices. The similarities also relate to basic comfort factors including quality of the sightlines, viewing distance from the pitch and seat width/row spacing.
Oh and American college football grounds are something else entirely and have even less relevance to Association Football, unless you want to go back a hundred years or so, to huge open terraces like the old Wembley, White City and Hampden Park.
So, next time you feel the urge to post a photoshopped image of the Lucas Oil Stadium with red seats, or cream over the Cowboys stadium, have a think about what your looking at. If you disagree with the above feel free to comment.