Developing computer models can help us to study the structural causes of urban inequality.
A substantial building programme is needed to rearrange our cities to benefit all types of journeys – not just commutes.
The global trend is to free up valuable city space by reducing parking and promoting other forms of transport that don't clog roads and pollute the air. Australian cities are still putting cars first.
Australia has well established urban design guidelines, whereas many Chinese cities don't have any – and it shows. But Australia can also learn from China.
Cities must manage all the competing uses for limited roadside space to avoid congestion and maximise efficiency. And that begins with reliable data.
Children are the future, so why don't we listen to them more often?
Good urban design and walkability boost local economic activity by increasing public activity, but cities need to pay more attention to the effects of microclimates on streets and public spaces.
Indonesia has plans to move its capital outside of Java, but the government has yet to make the case for this move.
When a city gets to a certain size, it starts to make sense to have multiple centres of activity, and three are planned for Sydney. So what needs to be done to bring the city closer to this goal?
Australian cities have a glut of parking, even as politicians move to protect parking spaces or promise even more. There are better ways to keep congestion manageable and our cities liveable.
A newly released ten-year plan for Melbourne aims for fewer cars, safer streets and more shared spaces. A significant amount of parking and road space would be reallocated to walking and cycling.
Other countries are planning new cities using technological innovation to achieve more sustainable development. Such plans aren't new for Australia, but existing city growth is the focus of attention.
Podcasters are creating new conversations about who and what the city is for. But even in the podcasting world, powerful interests can make it hard for new and previously excluded voices to be heard.
Cape Town's draft strategy on water supply is out for comment, but important elements are missing from it.
Under 10 percent of new Citi Bike and Divvy bike docks are sited where residents suggested using interactive online maps, a new study shows. But that doesn't mean city officials weren't listening.
Canberra is growing as fast as anywhere in Australia. It's driven by a knowledge economy that is transforming the city centre but is also displacing poorer residents.
Planning innovations around the world offer inspiration, but ultimately the innovations needed to make Australia's sprawling cities more sustainable must be shaped by local conditions.
An increase in the use of self-driving cars will change parking infrastructure in cities, and hopefully result in more colourful character neighbourhoods.
Planners have long tried to determine the ideal city size, and ideas have evolved with changing circumstances. But a good city depends more on the way it's managed than on how many people it holds.
We have forgotten how to be imaginative when planning our cities. Looking back into Melbourne's planning history, we might be able to find some inspiration to tackle rapid growth in a creative way.