Speciálterv was responsible for preparing the permit plans and the detailed design plans of the intersection between road No. 3 and No. 21 in Hatvan including 3 girder bridges, an arch bridge & an elevated roundabout. Based on the strategic plans, our detailed design served as a basis for the complex urban regeneration of an integral area of Hatvan. Besides providing this connection, the design focused on creating a quality spatial experience. The steel arched bridge spanning the railway also has a curved layout, which is a unique and remarkable design.