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
Peter Walker: British ministers are happy to invest hundreds of millions of pounds promoting electric cars, yet pay little attention to their two-wheeled equivalents
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'