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Cities like Melbourne are a store for such huge amounts of resources that they could be used as urban mines. Donaldytong (own work)/Wikimedia

With the right tools, we can mine cities

With an ever-increasing cost to extract dwindling raw materials, it’s time to look at cities as urban mines. We’re developing the tools to do that.
The old Pratt Street power plant in Baltimore in the US is now home to commercial uses. But the heritage preservation is compromised by advertising that is not sympathetic to the building style and design. Wikimedia Commons

Sustainable re-use and recycling work for heritage buildings and places too

Adaptively re-using buildings can preserve heritage while enabling new uses that help make cities more liveable and sustainable.
The Tower of London has altered greatly in its 900-year history as a castle, home, museum, prison and tourist attraction. Claudio Divizia/Shutterstock

Heritage building preservation vs sustainability? Conflict isn’t inevitable

When talking about heritage, we need to be clear about our definitions and our objectives for each building. Then we can work on achieving the optimum balance of heritage and sustainability.
The right side of the ‘latte line’ in Sydney, looking across Paddington towards Bondi Junction and the eastern suburbs. R. Freestone

Australian cities and their metropolitan plans still seem to be parallel universes

The State of Australian Cities Conference begins in Adelaide today. In major cities across the nation, there’s a stark contrast between lofty planning goals and the sprawling reality on the ground.
Reforming how drivers pay for the costs of their road use can help keep traffic flowing, which is just one of the potential benefits. Holli/Shutterstock

Delay in changing direction on how we tax drivers will cost us all

Traffic congestion is the main cost that cars create when they use existing roads. Road use charges are a more efficient and fairer way to cover the cost and help ensure traffic flows.
A homeless man sleeping rough in the city. More and more older people will be homeless on current trends. flickr

More and more older Australians will be homeless unless we act now

The rising number of older Australians is exposing the shortage of housing options and services to meet their needs, putting them at increasing risk of homelessness.
A trial of 1,400 drivers across Melbourne suggests time-of-use charges can be effective in easing traffic congestion. AMPG/Shutterstock

City-wide trial shows how road use charges can reduce traffic jams

A city-wide experiment suggests well-designed road use charges could ease congestion by encouraging people to drive at different times, take other routes or use other transport.
Canadian Prime Minister Justin Trudeau and Sidewalk Labs CEO Dan Doctoroff launch Sidewalk Toronto, a high-tech urban development project. Mark Blinch/Reuters

Can a tech company build a city? Ask Google

Toronto has entered a joint venture with a Google sister company to create a high-tech urban development area. The goal is to ‘re-imagine cities from the internet up’ – Google’s internet, of course.
Highton Shopping Village in Geelong. Leila Farahani

This is how to create social hubs that make 20-minute neighbourhoods work

Low-density suburbs can cause social isolation that’s harmful for individual and community well-being. But research confirms we can plan neighbourhood centres so they become vibrant social hubs.
If more people live in the Adelaide Hills, they are more likely to be exposed to bushfires. David Mariuz/AAP

Natural hazard risk: is it just going to get worse or can we do something about it?

What decisions can we make today to reduce the future risk of hazards like floods and fire? Particularly in a time of climate change, modelling various plausible futures helps us plan for uncertainty.

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