A Noracon Travelling Gantry was installed to the full width and length of the North Ticket Hall suspended from aluminium monorails concealed within the ceiling.
The Gantry was designed to travel parallel to the escalators beneath utilising a rope driven trolley which removed the requirement for any electrical connections.
To enable the platform to travel the full length. part of the gantry was designed to become detached from the main section, allowing it to be “jettisoned” at the point where the new lift obstructs travel. The two sections become independent allowing the gantry to travel the remaining distance.