Everything you need on your doorstep: a radical plan to improve our cities. Imagine if everything you needed - your work, leisure and essential services - was just a 15-minute walk or cycle from where you live. With no need to drive, there’d be less time sitting in traffic jams, the air would be less polluted and maybe we would all be a bit less stressed. That’s the vision that many cities around the world are now trying to achieve - a new concept called the “15-minute city”. As more and more of us join the urban sprawl, the aim is to make city life healthier, happier and better for the environment. We visit Paris to see the plan in action. Produced and presented by Richard Kenny. Image: Getty Images