Land of the fat: How urban design can tackle obesity
Thursday, July 5, 2012/
Compared with our grandparents, feeding, clothing, and entertaining ourselves has never been easier: a one-stop weekly shopping centre trip in a car, facilitated by convenient parking and light-weight maneuverable shopping trolleys that allow us to whiz around the supermarket with ease.
In fact, these days people don’t even need to leave home to do their food shopping, order takeaway food, bank or pay bills, shop for clothing or household goods, “visit” with their friends, read the newspaper or amuse themselves. Using the internet or telephone, activities that used to involve some level of activity or a short walk, can be done with “anywhere, anytime” convenience.
If we couple this lifestyle of convenience with a media environment that advertises and provides an attractive array of easily-accessed, low-cost and tasty, high-fat, high-sugar foods, it’s not surprising that obesity is such a huge problem.
Australia is one of the global leaders in the obesity epidemic, with two-thirds of Australian adults, and a quarter of Australian children, overweight or obese. Alarm bells are ringing in health circles about the impact this will have on all the major preventable diseases: type 2 diabetes, cardiovascular disease and cancer. These diseases will get worse unless we can help people maintain a consistent belt size throughout their life.
Poor diet, lack of physical activity and other sedentary behaviours are the main culprits in the obesity epidemic. People choose how active they are and what they eat. But their local environments – their neighbourhood, local parks and streets, as well as their homes, workplaces and schools – provide opportunities and barriers that affect those choices.
There’s widespread agreement that we’ve created obesogenic environments that encourage both inactivity and overeating. So what can be done about it?
For a start, we could improve neighbourhood design to get people out of their cars and onto the streets. People are more likely to walk and cycle if they live in safe, compact, pedestrian-friendly neighbourhoods characterised by connected street networks, access to nearby destinations such as shops and parks, mixed uses of building such as housing above shops, and high population density.
People living in the suburban sprawl walk less, drive more, and spend more time in sedentary pursuits, such as watching television or using the internet, than those living in compact, pedestrian-friendly neighbourhoods. We need to plan services in new communities so that schools, shops, public transport, and parks arrive at the same time as housing – so that residents can develop good walking, cycling and public transport habits from the outset.
At the same time, we need to share the resources available in established suburbs closer to the city where there’s already good access to parks, jobs, and public transport. This means increasing the number of people who live in inner-city suburbs and giving more people access to existing shops and services.
We also need to think about quality and access to open space: parks, ovals, play grounds, and school grounds. The way open space is designed gives people cues about how it is to be used – is this open space simply for vandals and hoons, or does it say to local residents (regardless of age), “This space is open for active business; come and join in”?
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