Drivers and cyclists develop distinct identities of themselves and others in ways that mirror the formation of ethnic identities. And on-road segregation runs the risk of reinforcing this process.
Bike helmet laws are meant to be about safety. But the hefty penalties and huge number of fines are causing resentment – made worse by some police abusing the law to stop, question and search riders.
Australia has had an 80% increase in cyclist deaths in 2017-18. With drivers at fault in most collisions, their attitude and behaviour should be the main targets for change.
Hundreds of US cities have red light cameras to try to catch traffic violations and prevent accidents. But research shows that the cameras may encourage other types of accidents.
Autonomous cars need to learn how to drive just like people do: with real-world practice on public roads. It's key to safety, and to public confidence in the new technologies.
Wider societal issues are driving road user behaviour, which cannot be fixed by taking a traditional road safety approach.
The primacy given to the car has shaped our cities, the roads that serve them and our very thinking about the place of driving in our lives. And it's a mindset that leaves cyclists highly vulnerable.
Car seats and their endless harnesses, straps and buckles feel like an engineering nightmare for parents. But they work.
Unlike a driver, the way a self-driving car responds to emergencies is programmed –decided in advance. We need to sort out the legal questions of responsibility this raises, and soon.