A few years ago I crashed en route to Viewforth from Lochrin Place, thanks to the near invisible grey chain between 2 posts, injuring my right thumb, and witnessed by a fellow cyclist.
Now this has highlighted the potential for liability in poor placement and hazard marking of bollards and access restrictions. Note the post crash use of traffic cones.
http://www.dailypost.co.uk/news/north-wales-news/caernarfon-cyclist-dies-after-crashing-7744828