Transport in Europe: how does it differ by city?

Are we using public transport more than we used to? And which cities suffer from a high level of night-time traffic noise? A new report provides some interesting transport figures showing how urban transport differs across Europe

On the road: Bamboo Mountain Bike

Helen Pidd: 'Believe it or not, the choice of bamboo as a building material is less about appealing to Guardian readers than about making a superstrong yet light bicycle'