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Articles sur Roads

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When a stream enters a culvert, the flow can be concentrated so much that water flows incredibly fast. So fast, in fact, that small and juvenile fish are unable to swim against the flow and are prevented from reaching where they need to go to eat, reproduce or find safety. Shutterstock

How did the fish cross the road? Our invention helps them get to the other side of a culvert

Our new invention tackles one of the greatest impediments to fish migration in Australia: culverts, those tunnels or drains often found under roads.
There are more than 50,000 public bridges in Australia. (The Sea Cliff bridge is one Australia’s newer bridges, built in 2005). from shutterstock.com

Are Australian bridges safe, and can we do better?

Australian bridges are generally safe, but we don’t have transparent information about how often they’re inspected or maintained.
An aerial view of Seligman, Arizona, looking west, dated March 12, 1971. Route 66 bisects the town. James R. Powell Route 66 Collection/Newberry Library

Could new legislation lead to a Route 66 economic revival?

‘The Mother Road’ is one step closer to becoming a National Historic Trail, which would allocate funds for struggling towns along the original Route 66.
The settings on traffic lights make pedestrians wait longer by giving higher priority to vehicle traffic. Abaconda Management Group/Wikimedia

How traffic signals favour cars and discourage walking

Everyone doesn’t simply wait their turn at traffic lights. Signals are set up to enable a ‘green wave’ for cars and adjust to heavy traffic, making walkers wait longer no matter how many there are.
Sydney’s WestConnex is being constructed as a “high priority” project, despite its business case failing to meet Infrastructure Australia’s stated requirements. Ben Rushton/AAP

A closer look at business cases raises questions about ‘priority’ national infrastructure projects

Analysis of the business cases for three of the biggest projects deemed “high priority” by Infrastructure Australia raises questions about the process.
Much of the traffic using Sydney’s Anzac Bridge and, in the distance, Harbour Bridge is travelling through the city centre, not to it or from it. Rob Roggema

This is how WestConnex can deliver Sydney a better city centre

One potential benefit of WestConnex, which remains untouched, is that it could relieve Sydney’s city centre from cars and make it more pedestrian-friendly.
Could a secret ingredient make crumbling concrete a thing of the past? m_e_mccarron

Fungi can help concrete heal its own cracks

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.

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