Once again, the state looks intent on pressing ahead with a huge road project without releasing a business case. Among the many concerns is the failure to look at lower-emission alternatives.
Smaller projects are better for delivering broad, long-term value to communities across the country, reducing inequality and cutting emissions, as well as quickly providing jobs and economic stimulus.
After the 'world's biggest work-from-home experiment', many people (and their employers) might decide they needn't commute every day. If even a fraction do that, infrastructure needs will change.
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.
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.
Climate change science was driven by curiosity in the past. Now climate researchers need to focus on managing the risk of global warming's ill effects.
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 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.
The NSW government will spend more than $23 billion on toll road, and recoup just $4 billion by selling it.
Billions of taxpayer dollars are committed before all the evidence for, and against, infrastructure projects is in. As well as missing business cases, basic rules of economic modelling are broken.
Analysis of the business cases for three of the biggest projects deemed "high priority" by Infrastructure Australia raises questions about the process.
Thousands of dirt roads crisscross the Brazilian Amazon, serving ranchers, loggers and miners. The area's fragile waterways — and the spectacular fish that live in them — pay a high price.
Adding a bit of fungus to the initial ingredient list might be one way to endow concrete with the ability to fill in any bits of damage that occur, without the need for human intervention.
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.
Elon Musk's new Semi has platooning capability - where multiple trucks commute in a line with a single driver in the lead vehicle. But could it work in Australia?
While other countries race into the distance, Australia is still on the starting grid when it comes to electric cars. Why so slow? Because we don't have a proper recharging network.
Instead of focusing on freeways, governments should change the way we pay for urban roads and public transport.