BKK operates 4 metro lines, 5 suburban railway lines, 33 tram lines, 15 trolleybus lines, 264 bus lines, 4 boat services, and BuBi, a smart bicycle sharing network.

The development of complex intelligent transportation system in the city is advancing; the application of smart traffic lights is widespread, they are GPS and computer controlled and give priority to the GPS connected public transport vehicles automatically, as well as the traffic is measured and analyzed on the roads and car drivers informed about the expected travel time and traffic by intelligent displays.

The development of Futár, the citywide real-time passenger information system and real-time route planner is finished already and now all of the public transport vehicle is connected via satellite system. The real-time information of trams, buses and trolleybuses are available for both the operators in the control room and for all the passengers in all stops on smartphone and on city street displays.

Tram lines no. 4 and 6 are the busiest city tram lines in the world, with one of the world’s longest trams (54-metre long Siemens Combino) running at 2–3-minute intervals at peak time and 4–5 minutes off-peak.

Hungarian State Railways operates an extensive network of commuter rail services, their importance in the suburban commuter passenger traffic is significant, but in travel within the city is limited.