Articles sur Traffic

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When cars, trucks, bikes and pedestrians come together at an intersection, design makes the difference between collisions and safety. pxhere

We can design better intersections that are safer for all users

Collisions at intersections between motor vehicles, cyclists and pedestrians cause many deaths and injuries. Design that considers how each group approaches intersections improves everyone's safety.
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.
Whether it’s birds in a flock or drivers in traffic, agent-based modelling can describe complex phenomena by applying a simple set of rules to each individual’s behaviour. Barry Sweet/EPA

Traffic is complex, but modelling using deceptively simple rules can help unravel what’s going on

By identifying and applying the key rules governing the behaviour of each individual, agent-based modelling offers insights into complex phenomena like traffic jams and flocking.
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.
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 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.
Riders on San Francisco’s Muni light rail system. David Lytle

What public transit can learn from Uber and Lyft

Millions of Americans rely on public transit to get to school, work or stores, but many can't get the service they need. 'Uberizing' transit by offering more options on demand could fill the gaps.
Under the El tracks, downtown Chicago. Franck Michel

Urban noise pollution is worst in poor and minority neighborhoods and segregated cities

New research shows that noise pollution in US cities is concentrated in poor and minority communities. Beyond regulating airplane noise, the US has done relatively little to curb noise pollution.
Rush-hour traffic in Jakarta on 13 June 2017. If not for fuel subsidy cuts, the congestion could have been even worse. Reuters/Beawiharta

Indonesia’s fuel subsidy cuts prevented even worse traffic jams

Traffic continues to increase, but more slowly than would have been the case if the reforms had not gone ahead.
A red fox listening for prey under the snow in Yellowstone National Park. Noise can affect foxes and other animals that rely on their hearing when they hunt. Neal Herbert/NPS

Human noise pollution is disrupting parks and wild places

A recent study finds that noise from human activities is intruding into many parks and other protected areas. Creating quiet zones and noise corridors can help reduce impacts from noise pollution.
Part of a shipment of 33 rhino horns seized by Hong Kong customs, originated from Cape Town, South Africa. Bobby Yip /Reuters

Why is the illicit rhino horn trade escalating?

Rhino horn trade continues to be a highly lucrative business across the world.

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