The goal of this contribution is to describe the development of the public transport services in the new city centre of Bratislava, Capital of Slovak Republic. The real solution is to realize the set of three tramway lines around the new down town of the Bratislava. A huge development boom from the Danube river bank and on the edge of the Old City, where is risen up a new down town of the city. The territory specified will have around 20 high-rises with different function and there will be more than 17 500 new parking spaces (see Fig. 1). O quarter of the area is built a one third is under construction and all the tall buildings will be finished in 2025. At present, the operation of the territory is at the border of the saturation flows. The article shows a systematic traffic engineering and planning work starting with a set of traffic surveys and results for the next creating of traffic model which will be used not only for the prognosis scenarios of dynamic traffic flows but for changing the modal split for the public transport. There will be a new bus station and begins to reflect on the new tram routes. The results of extensive travel survey and the methodology of traffic modelling for improving the operation of the territory with designing the new tramway lines as a form of sustainable mobility will be shown.

pubic transport, tramway lines, traffic modelling, urban areas