Category Archives: Urban Design

Panda pandemonium

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China’s number one mascot the giant panda (ailuropoda melanoleuca) are only found in the bamboo forests of south western China. “They occupy 6 small forest fragments in the provinces of Sichuan, Gansu and Shaanxi. (5,400 square miles).”

The panda is well travelled in popular culture, as well as being a local hero. With the recent release of Kung Fu Panda, the panda Po looks set to win over another generation of children to panda love.

Habitat fragmentation (by roads and railroads) and destruction and poaching (for their pelts) are still major threats to the Giant Panda, even though poachers and smugglers have received death penalties or long prison terms. Pandas are often injured in traps and snares set for other animals.

Emerging threats to the panda populations are mining, hydropower and tourism. A giant panda may consume 26-83 pounds of bamboo a day to meet its energy requirements.

How green is my neighbourhood?

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One of the unfortuneate consequences of the fight against urban sprawl, which has been largely taken up in the name of Jane Jacobs, is the loss of green space and the urban forests of many communities. They are disappearing in the manner environmentalists call ‘death by a thousand cuts’, that is (sometimes) slowly and incrementally.

Sherwood Forest is one of the old, upscale, districts of Detroit, ‘the city of Neighbourhoods’;

“Developers thought that the area should resemble an English village; thus, they selected appropriate English names and curved and winding streets. You will not find a rectangular street pattern here or in old English villages. There are about 435 homes, most of them built before the Depression terminated housing construction in the city. Many of them are Georgian Colonials or English Tudor homes in keeping with the English theme. Some of the homes are newer, having been constructed after building resumed in 1947. They are large, even by the standards of early 21st-century architecture since they average about 3,600 square feet with four to six bedrooms.”

In the adjacent suburb of Palmer Woods is the Dorothy Turkel House by Frank Lloyd Wright, which undoubtably also relies on its leafy surrounds for its ambience.

British biologist Professor Jeff Sayer in his lecture at James Cook University asked the apt conservation question, ‘Conserving the forests for whom?’

Getting wet: staying on the edge

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As we await two expected tropical cyclones in North Queensland the following questions have a particular poignancy. What is the solution to coast inundation? Are there ways in which we can get used to getting wet and enjoy it as part of the experience – akin to playing in the surf?

While the Israeli port project may not offer the solution to the landfall of tropical cyclones, it might inspire ways to accommodate a slightly less defined and changeable boundary between the sea and land.

Mayslits Kassif Architects urban regeneration of the Tel Aviv Port is a landmark project which saw “the suspension of all the area’s rezoning plans” and set a precedent for “transformation not propelled by building rights, but by a unique urban design strategy.” The project received the 2010 Rosa Barba European Landscape Prize.

The geography and topography of place

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Urban designers in the port city of Copenhagen are making quite a splash for themselves with the design of several exciting new urban spaces.

Dune city is the latest urban design offering by SLA in Copenhagen. “Like a giant dune of sand or snow it slips in between and clings around the buildings, thereby creating a spatial coherence in the design.”

The foldedplate design enables the visitor (pedestrians, cyclists, skaters and the walking impaired) to tranverse the elevated landscape between the buildings amidst a vegetated space of reedy grasses and trees. The landscape has been designed to appear flat and two dimensional from a distance but to reveal its true three dimensional character as you move through its spaces. The high albredo effect is said to produce a cooler microclimate during the warmer periods by reflecting the incoming heat and radiation.

Can the the world’s model climate citizen lead the way also with climate sensitive urban design and by its example also change the fate of nations like Mongolia?

Waffle cities: landscape planning, urban design and architecture for flood-prone regions and global warming

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Long term landscape planning for the type of floods which have afflicted Australia could involve designing the landscape in the manner of a regional waffle. Much of the problem seems to have been caused by flows of water on an almost continental scale. The principles, as for Sustainable Urban Drainage Schemes, (SUDS) should be to detain, infiltrate and evapo-transpire flood waters. This process would be assisted by raising embankments where possible: field boundaries, roads, garden boundaries etc should all become dykes. In some cases the dykes would protect against floods but the main objective would be to stop the flood water cascading from zone to zone. Also, the dykes would serve as wild-life corridors and sanctuaries. My guess is that waffle-type measures would be cheaper and more effective than building large dams. The next stage would be to move from flood landscape planning to flood landscape architecture, by finding other uses for the dykes and by making them beautiful as well as useful. Individual properties would gain some similarities to motte-and-bailey Norman castles. Another advantage of waffle landscape planning is that when the rains come there will be more time for water to infiltrate into the ground and re-charge aquifers – in preparation for the next long period of drought. Does anyone know if waffle landscape planning has been considered, and if the engineering calculations have been done?

Image courtesy mhaithaca

Viewing the bigger picture

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The big question for what happens next for the city of Brisbane and for many cities worldwide is the role of climate change in flood events.

The previous big flood event in the city was in 1974. Since then a dam has been built as flood mitigation and in 2011 it has protected the city from more severe flooding.

However, with climate change, the expected frequency and severity of flooding could be expected to increase. So yes, a competition too – looking at the bigger picture – to design floodable spaces and places for cities would be a great contribution to urban flood defences and urban design.

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