New access chambers for the traffic signals in Whitehall were required. The STAKKAbox Access Chamber system was chosen for this new signalisation scheme. The system was specified as they provide a lightweight chamber with a 40 tonne loading. The system eliminated manual handling risks and offered extensive cost savings over traditional concrete or brick built chambers.
The chambers were installed with the NAL EN124 Recessed Covers allowing the cover infill to match the surrounding area. Also offering easy maintenance with a one person lift and slide removal.