Cars, buses and taxis are facing a ban from parts of Dublin city centre under new plans revealed by the City Council and the National Transport Authority. It's a tribute to the changes made in recent years that the suggestion wasn't met with howls of laughter. Fifteen years ago it would have been laughable to suggest the removal of private cars and taxis from areas like College Green but in that decade and a half a quiet revolution occurred. The Luas appeared, Dublin Bikes sprung up, and advances in technology (like the Dublin Bus app) have made it possible to tie all of the pre-existing public transport together, so journeys across the city no longer take three days and the support of a yak and a sherpa. So bring on the pedestrian plazas in College Green and Suffolk Street.