Where is the most over-engineered junction in the UK?

I came across the following junction and it started me wondering, where is the most over-engineered junction in the UK?    This one is in Cardiff where traffic lights and guardrails seem to be appearing faster than the rest of the world can take them down.


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    David Neylan

    This is a great question Ian, but how are you going to judge the winner? Is it to be the most stuff for the least problem or are the bigger junctions going to win?