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Pic: London 2012 / ODA / Richard Davies


One of the few venues in the Olympic Park that will remain unchanged in legacy mode, the London Velodrome is designed to accommodate different uses from everyday training through to HD broadcasting.


lamp housing, thus reducing the need for multiple spares. The Velodrome roof is constructed using a floating cable net system. Skylight strips run the length of the main hall, so a com- bined containment and hanging system was developed to sit between them. Attached using the roof cable-net nodes as connec- tion points, the containment systems are ar- ticulated so that they can follow the curve of the ceiling. This articulation also allows for movement of the roof in high winds or under heavy snow cover.


Each run of lighting was constructed at ground level where wiring could be tem- porarily connected to undergo final testing for faults. Fittings were all pre-aimed in accordance with the lighting design, then the whole lighting system was lifted into place using motorised hoists of the kind


used in stage lighting. Once locked into position, the cable ends were extended and teminated and the system re-tested. Hori- zontal and vertical illumination levels were checked against those in the design predic- tions, making allowance for the increased output for new lamps in clean fittings. All subsequent checks had to be carried out at night with all other site lighting isolated – a process that had to be repeated for each of the different lighting modes (training, elite training, event and broadcast event). The containment system allows the mount- ing of floodlights on a pre-arranged grid to enable future changes to be accommo- dated.


The cable net system is designed to sup- port abseilers, should this be necessary prior to a critical televised event, though replacement of lamps or failed units would


The lighting containment system was assembled at ground level before being hoisted into place. It is articulated to fits the shape of the roof and is able to accommodate movement in high wind or heavy snowfall.


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