Angela Saini explores the revolution taking place in the streets beneath our feet as she reveals the story behind a new urban design movement called shared space.

She travels to The Netherlands where shared space was born, inspired by the radical traffic planner, Hans Monderman, who envisaged a world without barriers, signs, pavement and traffic lights.

But not everyone is taken with this revolution, in particular the blind and visually impaired who say that shared space is fundamentally flawed and makes their lives less safe.