To excavate the new ticket hall below the roadway, traffic was diverted for five and a half years (August 1963 to Easter 1968) onto a temporary bridge-like structure known as the "umbrella" covering the Regent Street/Oxford Street intersection.
For at udgrave den nye billethal under vejen blev trafikken omledt i fem år (fra august 1963 til påsken 1968) til en midlertidig brolignende konstruktion, kendt som "paraplyen", der dækkede Regent Street/Oxford Street-krydset.