The theme of this master thesis is a way of solving tram track elongation in Brno - Lesna. The task was to draw up a tram track through the crossroad of streets Merhautova, Seifertova and Okruzni including reconstruction of crossroad. This master thesis deals with the of different variants of solution of crossroad. The most appropriate option is worked out further. In this work is also included outlining of futher tram tracking behind the crossroad and placement of the nearest tram stops. The result of this work is to elaborate of the situation including charasteristic cut sections and longitudinal profiles of tram lines. Part of this work is an estimate of the financial cost to realize this building.