Edit: added some links and more info.
Cyclist here. These "artsy" racks are the bane of our existence because rarely are they properly designed or tested to make sure they're actually useable. They're called "serpentine" racks and they're sometimes workable, but annoying. The loops have to be wide enough, for example - and if you have bags on your bike, you have to take them off first. If your bike is too tall, you can't get it into the "under" holes. If the rack is located against a wall or similar, you can't use half the loops because you need to alternate which way bikes are positioned or handlebars will hit. It is also impossible to lock the rear wheel/frame and front wheel using U-locks; only a post-and-loop rack or "hoop" rack is.
In order to be useful, you must be able to put the bike fully into the rack and (which results in not being able to remove the bike or wheel.) In that picture, the lock is passing around the seat tube, which is not necessary provided the lock is through the rear wheel between the seat and chain stay.
Our city installed a bunch of bike posts designed by teenagers. They look like giant padlocks. Edit: found news coverage of the racks. They're all different shapes and sizes, but all similarly retarded: http://www.jamaicaplainnews.com/2014/05/13/students-sculpt-funky-bike-racks-for-jackson-square/1603
I spent about 15 minutes trying to figure out how lock my bike to it, and gave up. Meanwhile a standard post with loop, which should be the default unless you have a VERY VERY good reason takes 5 seconds to lock to.
If you're considering installing a bike rack, please just buy a regular plane jane bike rack or series of posts. If you need help, a local bike club or bike committee for your city can almost certainly guide you. There may even be grants or free racks available.
If you think I'm being silly, imagine if parking spaces for cars were only provided if they had cute murals pained on them, in very slippery paint. And were boxed in by vertical murals that made it nearly impossible to open your doors.
NEVER EVER buy these racks. These are the word fucking racks in the world, "fence" style: http://nyc.streetsblog.org/wp-content/uploads/2008/10_06/Adam__s_rack_005.jpg
As are these "coathanger" racks which you can't lock to properly if your bike is anything but exactly the right size or you have a really big U-lock: http://www.asurban.com.au/image/cache/data/Coathanger%20Style%20Insitu%20(Medium)-500x500.jpg
This guy bikes.
Not to mention that if someone accidentally locks their bike to the end it can be lifted off.
You'd be surprised what I can fuck up
plane jane bike rack
So, like this then?
Don't worry, wheel come up with something
Hmm, I think I spoke too soon.
used for listening the " Bikes Per Minute "