To link the separated areas of the railways we suggest to frame the fragments of Hyvinkää‘s city core with a green ring, expanding the existing green areas. Defining elements are three bridges crossing the rails: the Forest bridge, the light bridge and the square bridge. Bicycle lanes and pedestrian zones in the green ring become a part of public space in our vision. They close gaps between functions situated on the both sides of the railway. Mobility is reorganized in order to reduce and keep motorized traffic away from the centre. The third spaces in-between is defined by the new greenhouse building at the train station that integrates small scale building stock in its village-like structure and introduces productive functions to the area. The greenhouse functions as a catalysator and magnet for the transformation and further adaptation of the site.