Stockholm, the capital of Sweden and the largest city in the Nordic countries, is growing fast. It’s in the transmission from a medium-sized city surrounded by ten small municipalities to a plus-one-million city, in a three million metropolitan area, while the road network and public transport infrastructure is dimensioned on the earlier situation. Stockholm’s living lab is Årsta and Stockholm City Centre. Årsta is a rapidly growing district in southern Stockholm. Årsta lacks access to the underground but there are busses, tram and a commuter train.