Doesn't typically work for pedestrians who already have priority over cars turning in to a side road (HC Rule 170). Didn't work in London where they put Give Way lines across the segregated cycle lane at Byng Place after a number of accidents and near misses with cars turning across it. Have a look at the "Looked but failed to see" problem of cycle paths at junctions. The
Danish research concluded that the only viable way to solve it was to mix cyclists back in with the traffic.
Seeing as the paper costs $41, I will take your word for it!
My experience of Copenhagen is that giving way works for them. It may not work for us since motorists aren't conditioned to do so. Having a solitary give way is going to cause confusion. On the pedestrian right of way, one of the many interesting things about living in my area of London is how many cars actually do give way and how many pedestrians assume equal priority on side-road junctions. It is as if the junction is treated as shared space with pretty much equal priority given to all users. Clearly this isn't the case for all motorists and certainly not the case for all areas. I guess the point I was making was that there is nothing special about Danish drivers - they simply are used to doing something our motorists don't need to do. And the occasional give way section isn't really going to help make the give way to cyclists habitual. In Copenhagen the segregated paths are treated more like an extension to the road-way than the footpath. It would be absurd to have give ways to minor roads on the on-road cycle lanes we have in London, and I expect that the Danish see it the same way with their cycle lanes, even though they are separated from the motor lane.
I think bus lanes are the cyclists best way to get infrastructure in London. They are now relatively accepted and afford a reasonable space to cyclists with limitations on traffic interaction. I seem to recall much wailing and gnashing of teeth by motoring in general when bus lanes were being introduced, but the world didn't stop, and bus lanes seem to be the only recourse to moving tarmac away from the private car.