§ Mr. Russell
asked the Secretary of State for the Home Department why it was necessary to close Constitution Hill, Birdcage Walk and The Mall to traffic for the whole period of each rehearsal for the Trooping the Colour.
§ Sir D. Maxwell Fyfe
Birdcage Walk is closed for a short period before and after the ceremony, and at the two main rehearsals, to permit the passage of troops to and from the parade ground. Constitution Hill and The Mall are closed to facilitate the forming up and passage of the Royal procession from Buckingham Palace to and from the parade ground. For the rehearsals, both roads are re-opened for a time while the Trooping is taking place, but for the actual ceremony this is impracticable because of the large crowds in the vicinity of the Palace, and the comparatively short interval between the forward and return journeys of the Royal procession.