construction question - what is this...

[SpongeG]

i see it in pictures of buildings under construction all over the world from Toronto to London to Seoul etc etc.

where there is this like a box that rises up with the building as it goes up - whats different about this way to what gets done here in vancouver - never seen this "box" method used out here...


resources2.news.com.au


2.bp.blogspot.com

[SpongeG]

some more pics


onstreetlevel.files.wordpress.com


upload.wikimedia.org/wikipedia/commons/thumb


imageshack.us


upload.wikimedia.org


newsaigon.files.wordpress.com

[cabotp]

My only guess would be that it is used to prevent objects from falling off the side onto the ground below.

Maybe they want to knock a few people over the head in Vancouver