These elements provide additional facilities for the duration of an event and are generally of a lightweight construction, as they are often removed afterwards.
The role of overlay is extensive and can cover all aspects of a major event, starting with the "back of house" user groups, including staff, operations, officials, broadcast, media, hospitality, VIPs and the athletes themselves.
These groups all require physical facilities to provide accreditation, accommodation, segregation and wayfinding, which need to be separated from, but connected to, the spectators at the "front of house", to preserve the magic and mystery of the event experience.
The overlay design also has a significant role in helping to define the overall environment of a major event.
By taking a design-inclusive approach and considering the cultural and design aspects alongside the commercial and functional requirements, memorable places and spaces can be created out of simple components and hired commodities.