Can one day without cars really change our travel habits?

It is said that on average, we take 66 days to form a new habit. So when an initiative sets out to change our habits in just 24 hours, there’s cause for scepticism. World Car-Free Day aims to do just that. The thought is that by closing city centres to cars for one day a year, people will make a long-term switch to alternative modes of transport and help us to address the many problems caused by our dependence on cars.