Only the inner suburbs of Melbourne and other capital cities meet the 20-minute neighbourhood test. But we could transform the other suburbs for much less than the cost of current transport projects.
States across Australia are increasingly using market-led proposals to build infrastructure. The emerging problems reflect the inherent risks of projects that bypass proper public planning processes.
Are debates about e-scooters too narrow? Perhaps it is time to focus more on revitalising urban spaces and retrofitting road infrastructure.
Unsolicited market proposals are not transparently assessed. Infrastructure should be built to serve the public interest, not shaped by its private backers, but the checks to ensure this are broken.
Faced with the eye-watering costs of building infrastructure, it makes sense to turn to much more cost-effective smart technology to get traffic flowing.
A breakdown in the road or rail systems often causes commuter chaos in Australia. Some overseas cities are more resilient because they have other options – and our bicycle network could give us that.
Some countries have already committed to using electric aircraft on domestic routes. These aircraft could slash costs and emissions on some of Australia's busiest flight routes.
The Coalition's infrastructure budgets over this term of government have been around the midpoint of government investment over the past decade. But how projects are chosen leaves a lot to be desired.
Despite boasts of 'record' infrastructure spending, relative to GDP it's comparable to previous budgets. What's different is that Treasurer Frydenberg has chanced his arm more over the longer term.
The focus on roads reflects the fact that this infrastructure program lags well behind the growth of our biggest cities, resulting in less-than-ideal transport patterns.
The major parties are promising projects costing tens of billions of dollars, with a surprisingly large overlap between them. Yet only two have been endorsed by infrastructure authorities.
Every major transport study since the 1970s has identified Sydney's western rail corridor as the priority for an upgrade. The latest patronage figures confirm that's where the need is greatest.