Originally Posted by Þróndeimr
I believe that the difference is that the Hardangerfjord bridge is situated on a much less windy place whilst Hålogalands bridge is situated at a place where it will be very windy. Typically, between Stadt (just south of Ålesund) to Troms the southwestern winds tend to be very strong, and Hålogalands bridge will be met head on by these winds. Still i don't know the purpose of the barrier, but its rather for wind than preventing people from committing suicide!
I respectively disagree about the barrier being needed to negate any effects of wind. Perhaps this rendering image showing it in a bit more detail from the walkway will shed light on its purpose? It appears as a redundant railing. It just seems to me there is simply not that much material to make a difference. I still think the fins under the deck have more influence. Denmark’s Great Belt East Bridge has those fins as well and it is a much larger bridge also in a windy area. Hopefully we can find out what this railing system is exactly for. Hopefully I can get to Norway someday and see all your spectacular bridges in such beautiful settings!
image hosted on flickr
Hålogalands Bridge secondary railing
, on Flickr