@i good links, really clears up what they are meaning by "Copenhagen junction". Perhaps the designers were borrowing the word to attach some Danske-cool to the plans and that isn't helping because it's not exactly clear what they mean, and the blue rinse brigade are getting a bit upset that "This is Roseburn, not Copenhagen". Re-designating the junction design as something like "cycle priority junctions" or "low-conflict safety junctions" might help things.
I might make a little explanatory diagram of these junctions, I think that might help.