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.