This thesis deals with the modification of the interchange of motorway D1 in Brno – east (km 203). It’s aim to design an optimal solution for omnidirectional connection on the road I/50. Currently it has the shape of a letter Y which allows only a two-way ride. Further, the aim is to propose the connection of the road II/430 to the road junctions. Part of this thesis is proposal to extend the motorway to a six-lane in the place of interchange due to capacity utilization. For this thesis was chosen one from four concepts of the junction within the scope of the study. The work is complemented by a tradic survey on the current arrangement which was carried out using statistical radars.