Killiney Hill round-about

As bad as the round-about at the intersection of Killiney Hill Road and Victoria Road is, the one outside the gates of the Killiney Hill Park apartments is even worse. If two cars are waiting to enter the gates, traffic heading towards the Druid's Chair cannot pass.

I can't help wondering who it is that lives in those apartments that the 90 second (at most) wait to enter the road was too great a delay in this important person's life. I can think of no other explanation for this ridiculous round-about.