Hosting the Olympics is one of the most difficult projects a city and a nation can undertake, requiring years of careful planning and collaboration among engineers, designers, builders and the international community.
The 2012 Summer Olympics in London is no exception, showcasing many creative solutions to the challenges of staging a global athletic competition in a major urban area.
According to the United Kingdom’s Royal Academy of Engineering, the Olympic Delivery Authority (ODA), which was responsible for constructing the main facilities for the games, adopted six key principles to guide the project: legacy; health, safety and security; sustainability; equality and inclusion; employment and skills; and design and accessibility.
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Before any large-scale construction could begin, 1.4 million square meters of the site had to be cleared and more than 200 buildings were demolished, with 90 percent of their materials recovered for reuse in the new construction project.
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The contaminated soil at the site also had to be cleaned and recovered. Two million tons were treated, primarily through soil washing, and 95 percent of the soil was recovered and reused as material for backfill, drainage and embankments.
The Olympic Stadium itself is a model of design and engineering versatility. Unlike earlier stadiums, the arena built for the London Games is intentionally unglamorous, and this simplicity is a key feature of the lightest, most flexible and most sustainable Olympic venue ever built.
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