Can you imagine living in a vertical city where the top levels generate solar and wind power to the levels below? This was one of the many intriguing ideas that came to light in a recent competition on how our metropolitan centres could look in the near future.
The national Ideas for Australia's cities 2050+ competition was run by the Australian Institute of Architects' 2010 Venice Architecture Biennale Creative Directors, John Gollings and Ivan Rijavec, to source material for the 2010 exhibition in the Australian Pavilion in Venice.
The team's two-part 'NOW + WHEN Australian Urbanism' exhibition will highlight three of Australia's most interesting urban regions as they are 'NOW', before dramatically representing around seven futuristic urban environments from the competition as they may be 'WHEN' we reach 2050 and beyond.
The competition fired the imagination of Australia's architects and designers, resulting in inspired, possible solutions and imaginative proposals addressing the critical issue of Australian urbanism - examining possibilities across the terrestrial, underwater and airborne realms.
Shortlisted ideas range from proposals for:
* New cities housing between 50,000-100,000 people in current desert areas to address our expected population growth;
* Cities in which urban development is concentrated in 'peripheral' areas, such as large landholdings on university campuses, 'big box' shopping centres, business parks, industrial estates, recreational reserves, and market gardens to establish a series of interlinked, self-sustaining districts dispersed along a transport ring.
* Cities which feature a 'tartan-like texture of pure urban areas (or cells), pure rural cells, and cells which are a hybrid of rural and urban', providing a 'vital flexibility for a sustainable future'.
* Cities designed for 'urban life without fear', based on the belief that 'any design for a good, sustainable city for the 21st century will demand a theory of hope and the desirable'.
* Cities in which 'within tightly controlled boundaries exist Multiple Cities'. Cities which address issues such as: what if a city grows not out, but up or down? What if a city's growth boundary is not on its periphery but at its heart? What if new planning initiatives were introduced governing the use of air space? 'A Green City, where the top plane provides wind and solar energy to power (and cool) the multiple cities below', as well as all food production.
* Cities 'woven into the landscape' - balancing dense human settlement with flora and fauna biodiversity, with major roadways converted into natural landscape corridors.
* Cities hugging the coast from Noosa to Geelong to accommodate population growth and the preferred coastal climate; connected by a 'very fast train running from North Qld to Victoria; pockets of vertical sprawl; new cities in pristine locations such as Botany Bay and the Royal National Park.
The Creative Directors said those shortlisted were far more than hypotheticals. Each uniquely responded to future challenges including population growth, environmental degradation, dwindling resources and climate change. Each entry reflected a highly creative diversity of possibilities fused with a diversity of design that mapped out possible cities of the future.
Co-director Ivan Rijavec, Principal of innovative Australian architectural practice Rijavec Architects, said that the exhibition has spotlighted our most pressing national concern - how we best manage our cities and their future growth.
"We currently have 93 per cent of Australians living in urban environments being affected every living minute by the way in which our cities function", Mr Rijavec said.
"The number of responses received for this competition confirms that in Australia and internationally, urbanism - more than at any other period in history - has become fundamental to our prosperity and critical to our survival."
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